4 Circular Motion

• The symptoms are described in Section 1.6.

• A force diagram can be used to help apply a sufficient amount of blood.
• Why would pulling out of the second law cause a power dive, and why does a special suit prevent it from happening.

• The study of circular motion in this chapter will help us understand phenomena.

• In real life, we rarely see situations where motion is simple.
• As time passes, the forces exert on an object change direction and magnitude.
• Circular motion is the focus of this chapter.
• It is the simplest example of motion in which the sum of the forces on a system object are constant.

• The instantaneous velocity of the car is changing.

• The magnitude of the car's speed is constant, but its direction is changing.

• Estimating the direction of motion.

• When using the diagrammatic method to estimate the direction of the circular motion, make sure you choose the initial and final points at the same distance.
• You can clearly see the direction of the veloc ity change arrow if you draw long velocity arrows.
• The velocity change arrow should point from the head of the initial velocity to the head of the final one.

• Determine the direction of the racecar's acceleration as it passes A.

• There is a view of the car's path.

The constant speed change method is shown in the 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846 888-666-1846

• The sum of the forces exerted on an object moving along a circular path points towards the center of the circle in the same direction as the object's acceleration.

• The hypothesis only mentions the sum of the forces pointing toward the center.

• We think that as the pail passes the vertical force components balance, the end of a rope in a horizontal any point along its path, the sum of the forces points along the circle at a constant speed.

• The center of the circle has a No force pushing the pail in the direction of the acceleration.

• The vertical force components balance the sum of the forces.

• There is no force in the direction of motion.

• The sum of the forces exerted on the system object by other objects points to the center of the circle in the direction of the acceleration.

• Our hypothesis was supported by the results of our experiments.
• You would get the same result if you repeated the analysis for other points on the path.

• The ball is rolling toward the ring.

• The net force has no component when the object is moving along a circular path.

• We have learned how to qualitatively determine the direction of the acceleration of an object moving in a circle and how that relates to the forces on the object.
• The magnitude of the object's acceleration can be determined.
• Factors that might affect its acceleration are what we will begin by thinking about.

• Imagine a car following a curve.
• The risk that a car will skid off the road increases with the speed at which a car moves along a highway curve.
• The risk that the car will skid is greater if the turn is tighter.

• The object's speed is dependent on the acceleration.

• Experiments 1 and 2 show that the object moves twice as fast between the two constant speeds.

• Increasing the speed of the object results in a fourfold increase of its radial acceleration and tripling the speed results in a ninefold increase.

• The magnitude of radial acceleration is determined by the speed squared.

• We make one circle twice the size of the other.
• We arrange to have the same change for the two objects by considering them at the same angle, rather than through the same distance.

• The second experiment object has to travel twice the distance as the first experiment object so that the velocity change is the same.

• It takes the object twice as long to travel from the initial position to the final one because the speed of the object is the same.

• The two proportionalities are now combined.

• The constant of proportionality is 1 if we were to do a detailed mathematical derivation.
• We can make an equation for the magnitude of the radial acceleration.

• Our everyday experience matches this expression for radial acceleration.

• The numerator has 2 in it.

• The object moving in a straight line is equivalent to the object moving in a circular path.
• An object moving at a constant speed in a straight line has zero acceleration.

• A fighter pilot pulls out from the bottom.

• While his body moves up, his blood tends to move straight ahead and fill the veins in his legs.

• One-eighth of a circle on each side of the bottom right is what we sketch.
• We estimate point to determine if there is a blackout.
• The pilot's radial acceleration points up as he passes along the method shown on the next page.

• If the acceleration lasts too long, the pilot could black out.

• It's long enough that it's a concern.

• Special flight suits exert a lot of force on the legs.
• The magni- blood comes from the veins of the legs.

• To estimate the time interval when the pilot moves along the bottom part of the loop.

• The time interval needs to travel along the bottom quarter of the loop.

• The period is the amount of time it takes an object to travel around the entire path one time.
• A bicyclist racing on a track takes 24 s to complete a circle that is 400 m in diameter.

• Limiting case analysis can be used to see if Eq.
• is true.
• Thus, according to Eq.
• That makes sense.

• If the speed of the object is smal, its period will be large and its radial acceleration will be smal.
• That makes sense as well.

• Its surface undergoes constant speed circular greater free-fall acceleration of objects near Earth's motion with a period of 24 hours.
• The radial acceleration is shown as a point at the equator.

• Earth's rotation in Singapore is small.

• You are in constant speed circular motion.

• One-half of Earth's radius is 24 h.

• Newton's laws are only valid for observers in reference frames that are not speeding.
• Observers on Earth's surface are moving faster because of Earth's rotation.
• The acceleration we experience from other types of motion is larger than the one we experience due to Earth's rotation.
• When using Earth's surface as a reference frame,Newton's laws do apply with a high degree of accuracy.

• There are two things you need to have in order to have the correct units of acceleration.

• The analysis of processes involving constant speed circular motion is similar to the analysis of linear motion processes.

• The application of the second law for circular motion using a radial axis is summarized.

• The net force on it is zero.

Josh drives his car over a bridge with 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 and 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884 888-349-8884

• His mass is 60 kilograms.

• Josh's speed and his problem statement are included in the sketch.
• The car's radius of the arcs along which it moves should be labeled with al rel mass.
• Josh is an information person.

• Pick a system object and a spe cific position to analyze its motion.

• If the system can be modeled, consider Josh as a point-like object and analyze him as he passes it.

• He has a downward radial acceleration toward the center of the circle as he passes the top of the circular in the radial direction.

• The force diagram shows the forces on him.

• The net force has to point down.

• Earth exerts on Josh.

• Josh's second law is the radial components of the two forces exerted on him.

• We get the previous two steps if we put the known information into the previous equation.

• The magnitude of the 130 m2 answer's units, limiting cases, is S on J.

• The seat exerts upward force on Josh than Earth does.
• It almost feels like you are leaving the seat or starting to float above the road when you ride over a smooth hump in a roller coaster.
• The seat exerts downward force on you that causes this feeling.

• Imagine if Josh drove on a road that had a dip.

• The speed of the car and the dip are the same.
• As Josh passes the bottom of the 30-m-radius dip, you can find the direction and magnitude of the force exerted by the car seat on him.

• Josh sinks into the seat due to the upward force of 880 N.

• You've probably seen toy airplanes flying in a circle diagram to help apply the second law in component at the end of a string.
• The plane becomes a constant form.
• The horizontal component of the plane is being flown.
• The scale at the top is zero.
• The component of the string measures the force that the string exerts on the airplane.
• The time interval for the airplane to complete one circle is predicted.

• The angle of the string relative to the horizontal exerts force.
• The plane does not have a radial component.
• The system object is the plane.

• The plane's circular motion should be included.

• People stand up against the wal of a spinning circular room on a "rotor ride" at many carnivals and amusement parks.
• The people are up against the wall with their feet dangling.

• When the drum reaches on her.
• The woman that we can resolve into two does not slide down the wal of the drum because the drum exerts a force.
• You were an engineer who designed the ride.

• The sketch shows the upward static force is less than the downward.
• The woman will slip.
• The engi is the system.
• Her circular path is low.

• The normal force has a nonzero radial component.

• Compo reached its maximum speed.
• The woman's acceleration should be zero.

• Assume that the static force passes one point along the path.
• The woman remaining stationary can be used with the given 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299 888-353-1299

• The coefficients of static friction would be 2.
• The person would have to be attached to the vertical surface in order for the ride to be infinite.

• The minimum value is the mass of the rider.
• Earth exerts more force on the woman to prevent her from sliding.

• The woman's speed is found by using the information we for people to hold when riding.
• A force dia gram can be drawn for an adult standing on a merry-go-round.

• The Texas Motor Speedway is a long track.
• It is banked at 24 above the horizontal on one of its turns.

• Top view and rear view sketches of the situation.

• The system is the car.
• The speedway is drawn as a circular track.

• C on the right car is a point-like object that moves side by side along a circular path.

• Earth exerts on the car.

• 66 Mi>h is the second law.
• This is not as fast as actual racecars.

• You can see the try it yourself question.

• R on C cos 66 + 0 is shown.

• An expression for the speed of the car is determined by component and causes.
• To make the force big, divide the first equation by the second with the ger.

• There is no special force that causes an object to move at a constant speed along a circular path.
• The forces on the system object by other objects cause the acceleration.
• The sum causes the radial accelera tion of the object.

• Newton's second law applies to circular motion just as it applies to linear motion, but some everyday experiences seem to disagree with that.
• You sit on the left side of the back seat of a taxi that is moving at high speed on a straight road.
• An observer's view of a passen ger as a taxi makes a high-speed turn.

• An observer looks at the taxi and car.
• The feeling of being thrown out of a turning car seems strange to the passenger.

• Newton's laws only explain motion when an observer makes a reference frame.

• The taxi is turning.

• The passenger was watching the car move at a constant rate before it started sliding.
• The forces on you were exerted by Earth and the car seat was across the back seat.
• The observer saw the car turn to the left and the taxi turn to the right.

• When the door finally opened, it started hitting you in the center of the circle.
• You started moving with the car at a constant speed but changed it's direction.

• Think back to an example.

• The woman in the ride seems to feel a strong force pushing her against the wal of the drum because of her understanding ofNewton's laws and constant speed circular motion.

• We've looked at examples of circular motion on or near the face of Earth.
• We can see circular motion for planets moving around the Sun and our Moon moving around Earth.

• Scientists knew a lot about the motion of planets in the solar system.
• Planets were known to move around the Sun at a constant speed.
• There was no scientific explanation for why the Moon and the planets were traveling in a nearly circular pattern.

• Newton was the first to theorize that the Moon moved in a circle around Earth because Earthpul ed on it.
• He wondered if the force on the Moon was the same as the force on Earth.

• It was impossible to measure the force of Earth's gravity on another object.

• The law of universal gravitation of the object can be used to determine the gravity of the object.
• The Moon's orbital period of 27.3 days allowedNewton to use Eq.

• He did another analysis for a second situation.
• He imagined what would happen if the Moon were smal point-like and located near Earth's surface.
• If the Moon only interacted with Earth, it would have the same free-fal acceleration as any object near Earth's surface.
• The Moon's speed was different at two different distances from Earth's center.

• This information was used byNewton to determine how the force that one object exerts on another depends on the separation of the objects, and that this force changes with the separation of the objects.

• The Moon's mass cancels when taking this ratio.

• When the Moon is close to Earth's surface, the force exerted on it is about 1 times that of the Moon.

• You might be wondering why the Moon doesn't come closer to Earth in the same way that an apple falls from a tree.
• The speed of the objects is different in both cases.
• The ap ple is at rest with respect to Earth before it leaves the tree.
• The Moon would fly away if Earth stopped pulling on it.

• In what way the force of gravity depended on the mass of the objects?
• Earth's surface does not depend on the object's mass because of the free-fall acceleration.

• The last question was whether the Moon's mass or Earth's mass was more important in determining the force exerted by Earth on the Moon.

• The third law suggested an answer.

• The Eqs were combined byNewton.

• When he came up with Eq.
• The best he could do was to make the above relationship.

• The value of the universal gravitation constant is quite low.
• The force that the two objects exert on each other is equal to about 10 N. The Sun's mass is less than the Earth's, but the forces that they exert on each other are large.

• The Earth has a mass of around 6000 lbs.
• 50 g is the mass of a tennis ball.

• Newton's third law states that interacting objects exert force of equal magnitude and opposite direction on each other.
• The force that the ball exerts on Earth has the same magnitude.

• The bal exerts a force on Earth.
• Earth doesn't seem to react when someone drops something.
• If the ball exerts a nonzero net force on Earth, then it should accelerate.

• There is no known way to observe Earth's acceleration.
• The ball's mass is so small that it's easy to notice the ball's acceleration.

• The ball has a familiar free-fall acceleration.
• We can understand why free-fall acceleration on Earth is not some other number because of the discus sion above.

• This is how objects move near Earth's surface.
• The fact that the experimental y measured value of 9.8 m>s2 agrees with the value calculated gives us more confidence in the correctness of the law.

• This consistency check is used for a testing experiment.
• The moon is 1.74 * 106 m.

• The laws of planetary motion were created by Johannes Kepler, who studied the motion of the planets.
• The force equation developed for Earth-Moon interaction was applied byNewton.
• He could explain the laws by using universal gravitation.
• Scientists had faith in the law of universal gravitation.

• The Sun sweeps out the Sun located at one focus when the planets are ellipses with an imaginary line connecting them.

• The laws of motion and gravitation were used byNewton to derive the laws of planetary motion.
• Astronomers used the law of universal gravitation to predict the locations of Neptune and Pluto.
• The law of universal gravitation is connected by an imaginary line.
• Physicists and engineers sweep out the same area at the same time.

• The law of universal gravitation has been tested many times and is consistent with observations to a very high degree of accuracy.

• The law is not always valid because this relationship is cal ed a "law".
• The law of universal gravitation is not applicable to every mathematical expression in physics.

• An object that is spherically symmetric has the shape of a perfect sphere and a density that varies with distance from its center.
• In these cases, we can model the objects as if all of their mass was located.
• The foci of the el ipse are very close to the center of the circular circle.

• Satellites and astronauts put it all together at a single point.
• The law of universal gravitation does not apply if the objects are not spherically symmetric and are close enough to each other.
• We can use the law of universal gravitation on each pair to add the forces of the small point-like particles on each other if we divide each object into a collection of very small point-like objects.

• There are details of some motion that the law cannot account for.
• Astronomers noticed that the law of universal gravitation could not explain some of the patterns that Mercury exhibited.
• It wasn't until the early 20th century that scientists were able to predict the motion of Mercury.

• The moon's position is due to the force of the Earth's gravity.
• Earth's natural satellite is an object that circles a bigger object in the sky.
• Artificial satellites are placed in the sky by humans.
• Thousands of satellites have been launched since the first artificial satellite was launched in 1957.

• Earth satellites allow us to communicate worldwide, help us find our way to unknown destinations with our global positioning systems, and give us access to hundreds of television stations.
• The special satellites used in these applications must be above Earth's surface.

• You might have noticed that the satel ite TV receiving dishes on residential roof tops never moves.
• They point at the same spot in the sky.
• This means that the satel ite from which they are receiving signals must always be in the same location.
• The satel ite needs to be placed at an altitude that will allow it to travel once around Earth in 24 hours.
• All parts of Earth can be reached by an array of such satellites.

• You are in charge of launching a satel that is in the same position as Earth is in.

• One system object is completed by the satel ite, which is shown on the top of the next page.

• Satellites communicate with parts of Earth.

• The answer is constant speed circular motion if you insert the relevant information point-like particle.
• The satel ite requires a force dia gram.

• The satel ite is from the center of Earth.

• Imagine launching a satel lite that moves above Earth's surface.
• The only force that exerts speed is the satel ite.

• There are videos of astronauts in the International Space Station and the Space Shuttle.
• News reports often say that the astronauts are weightless.

• The values for Earth's center were put into the space station by the astronauts.

• The distance from the center of Earth to the surface is 106 m.

• The 2 surface@Earth Quantitative Exercise shows that the weight of astronauts in the International Space Station is the same as it was before.
• Earth exerts a force on both the astronauts and the space station.
• The force causes them to fall at the same rate, so they stay on the same path.
• The space station is in free fall.
• If the scale was placed on the floor of the space station, the weight of the astronauts would be zero.

• You don't press on the scale because the scale doesn't press on you, and the elevator doesn't press on you.

• The confusion is caused by the fact that in physics weight is a shorthand way of referring to the force of gravity on an object.
• The scale shows the normal force it exerts on any object.
• The word "weightless" is actually being used.

• A friend has heard that the moon is falling.

• There are forces on an object.

• It's not a big force.

Why do you feel like you're being thrown up in the air?

• The seat doesn't press on you as much.

• The force of a car seat on an arrow.

• When the car moves across the dip in the road, choose the location.

• Evaluate his diagram bychoos.
• If you put a penny on the center of a rotating turntable, it won't slip.

• It's hard for a high-speed car to negotiate an un- 11.

• A pilot is doing a vertical loop-the-loop.

What would happen to the force of the Sun on Earth?

• People are walking on the outer rim.
• According to your friend, an object on a space station feels the Earth more than an object on Jupiter does.

• Your friend says that when an object is moving in a circle, there is a force pushing it out from the center.

• Look for an observer who isn't 22.
• Give two examples of situations in which an object is able to explain phenomena using the knowledge of constant speed and zero acceleration, and two in which theNewton's laws and circular motion are used.

• You should make a drawing or graph as part of your solution.

• The sur no * is considered to be the least difficult when you start an old record player.
• Difficult problems are present in the record.

• You start mountain biking at 5.
• The Sun's motion along the bottom of a trail's circular dip causes the Earth to accelerate.
• What do you think Earth will do when it crosses the top of a hump?
• How does this compare to the bike?

• The average distance from Earth to the Moon is108 m.

• Each day it circles Earth for 27.3 days.

• A rock is tied to a string in a circle.
• Determine the direction of the rock's movement on the plane.
• There is a plane in front of you.
• The lowest point in the swing is passed by the pilot.
• He puls up, force diagram for the rock as it passes that point, if you construct a consistent of your plane.
• In a semicircular upward-bending path, how does it move?
• The string exerts force on the rock that is equal to the force of 500 m with a radial acceleration of 17 m.

• You are in a biology lab and are swinging.

• That is, 150,000 times.

• You wonder if the force that Earth exerts on you when you claim is correct if the circle is 0.15 m. You can support your answer with a calculation.

• In 9 h 56 min, Jupiter rotates about its axis.
• Its location is 22.

• Imagine that you are standing on a horizontal platform in an amusement park and the forces on Christine are compared to those on the platform along the radial direction.
• In Singapore, the period of rotation and the scale's radius are different.
• You know your mass if you list the assumptions that are given.
• If the physical quantities you could determine using this infor assumptions are not valid, make a list of you made and describe how your answer might change.

• A car moves along a straight line.

• Three people are standing on a chair.
• Use the sketch and their speeds to compare their periods of rotation.

• You can support your answer with a force diagram.

• A coin rests.

• There is a Ferris wheel.

• When you are at the bottom of the hump, draw a force diagram for yourself.
• When you are at the top, what is the mag of the circle?

• A person is sitting in a chair.
• A person is moving in a circle.

• The cable angle is below the horizontal.
• The circle's radius is not 6.0 m.

• A car goes around a curve.

Is it safe to drive a 1600- kilogram car at 27 m/s around a banked 10 relative to the horizontal if it's wet and icy and the highway curve is 150 m?

• You are working on a lawn mower.
• A 20.0-g ball is attached to a 120- cm long string and the mower turns 50 times per 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609- 888-609-

• Your car goes around the exit ramp of a freeway.

• An ice skater is skating around a circle at a ship.
• What is the force of the black hole on the ice rink?

• Earth's average distance from the Sun is 30.
• A car traveling at 10 m/s passes over a hill on a road that is 1.5 km long.
• The mass of Earth is 5.97 * 1000 km and it has a circular cross section of 30 m.

• A car is moving at 30 m/s around a second law.

• The Earth has a mass of 5.97 The law of uni velocity change diagram and the second law of gravity are used in this example.
• Below is a mathematical description of what assump.

• When at Earth's surface and when 1000 km above Earth's surface, it's an 80 kilogram person.
• The diameter of the Earth is 6370 km.

• Use words, a sketch, and a 45.
• If you were on the surface of Mars, you would need to know the magnitude of the Mars velocity change diagram.

• The free-fall acceleration on the surface of Jupiter, the dius of the track is 800 m and cars typically travel at speed most massive planet, is 24.79 m>s2.
• Jupiter's radius is 160 miles per hour.
• The feature of the design is important.

• If the number you provided increases above Earth's surface, a satellite will move in a circle around a distance of 1.6 * 105 m. Determine the satellite's speed.

• There is a mass of 6.42 and a radius of 35.

• If her mass is 1.3 times the mass of an Earth satellite, then the person must move faster or slower.

• Justify your answer.

Design a test that1-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-65561-6556 What assumptions did you make?

• Use the law to determine the period of an Earth satellite.

• A spaceship in outer space has a doughnut shape.
• The spaceship had to have a time interval of 38.
• According to your friend, the force that the Sun exerts on Earth is complete one rotation on its axis to make a bathroom scale much larger than the force that Earth exerts on the Sun.

• A loop-the-loop is needed for exerts on Earth.
• List at least two assumptions for each force new amusement park so that when each car passes the top that you made when you calculated the answers.

• The well for passengers of any mass is located in the elipse.

• There is a sun at one of the ellipse's foci.

• The black hole is 1014 m in diameter.
• An old building is being demolished by swinging a heavy metal bal from a crane.
• Suppose that a 100 kilogram bal swings from a 20-m long wire at 16 m/s as it passes the vertical orientation.
• If you made assumptions for each part of the problem, tell me about them.

• You need to design a banked curve for a highway in which cars make a 90 turn.
• If you make assumptions, tell them.

• Fighter pilots experience this force when they accelerate or decelerate.
• The pilot's blood pressure changes and the flow of ox ygen to the brain decreases.
• If you find any incorrect physics, tell me about it.

• People were almost weightless when at Earth's surface if the Earth's rotation was so fast.

• Determine the force 67.
• The vine of a shell leaving the barrel of a modern tank is enough to cause him to let go on the Moon, according to a science magazine.

• There is no atmosphere to slow the shell if the mass of Earth and the Moon were doubled.

• Gil de Ferran set the 57.

• The owing year was on April 29, 2001.
• The Championship Auto Racing Teams (CART) organization can long section of the tread of a tire as the car travels at speed.
• Justify the numbers used in the estimate.

• Drivers became 59 during practice.
• The maximum force that a football player needs to exert on his foot when swinging his leg to a high-banked track is estimated.
• The Texas Motor Speedway has a banked punt.
• Justify the numbers that you use.

• A way turns are banked at 9 and there is a circular motion problem.

• Indy-style cars have never had banking of 24.

• The accelerations have caused pilots to black out.

• The track was unsafe for drivers.
• The Texas Motor Speedway tested the track with drivers before the race and thought it was safe.
• The Texas Motor Speedway filed a lawsuit.

• The comet's direction of acceleration can be estimated using the velocity change method.

• The average speed reported in the reading passage is six significant digits, which indicates that the speed is known to be within 0.001 Mi/h.

• The peanut-shaped comet would reappear in 1757.
• Hal ey's comet March 1759 was spherical with a radius of 5.0 km and was delayed by Jupiter and Saturn.
• There were more recent appearances of the comet.
• Which answer is closest to your radial 1835, 1910, and 1986?

• 10 m>s2 (e) 1000 m>s2 is the ellipse of the comet.

• The comet is very close to the Sun.
• To determine which answer is closest to the comet's speed, applyNewton's second law and universal gravitation.

• The comet's farthest distance from the Sun is 1012 m. The answer below is the closest to the comet's speed when pass ing position II.

• It has a low mass with an average density.