College Physics, Volume 1
2nd Edition
ISBN: 9781133710271
Author: Giordano
Publisher: Cengage
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Chapter 5, Problem 7P
(a)
To determine
The period of the wheels motion of the circular track.
(b)
To determine
The change in centripetal acceleration of the runner.
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#5 For safety reasons, a circular ride at an amusement park is limited to a centripetal acceleration of 0.500g. If the car farthest from the centre is 8.25 m from the centre, what is the period of rotation of the ride?#6 The top of a hill on a roller coaster has a circular shape with a radius of 25.0 m. A car going over the top makes the passengers feel weightless at the very top. How fast is the car going?
A ball attached to the end of a string is swung around in a circular path of radius r. If the radius is kept constant and the speed is doubled
1 the centripetal acceleration increases by a factor of 2.
2 the centripetal acceleration increases by a factor of 4.
3 the centripetal acceleration remains the same
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An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the plane were to fly in the same 1000 m circle at a speed of 300 m/s, by what factor would its centripetal acceleration change?
Chapter 5 Solutions
College Physics, Volume 1
Ch. 5.1 - Velocity and Acceleration in Circular Motion...Ch. 5.1 - Prob. 5.2CCCh. 5.2 - Prob. 5.3CCCh. 5.3 - Prob. 5.5CCCh. 5.4 - Prob. 5.6CCCh. 5.4 - Prob. 5.7CCCh. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Consider the Cavendish experiment in Figure 5.22....
Ch. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - What force makes it possible for a car to move...Ch. 5 - Prob. 9QCh. 5 - Prob. 10QCh. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 13QCh. 5 - Prob. 14QCh. 5 - Prob. 15QCh. 5 - Prob. 16QCh. 5 - Prob. 17QCh. 5 - Prob. 18QCh. 5 - Plutos mass. In 1978, it was discovered that Pluto...Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8PCh. 5 - Prob. 9PCh. 5 - Prob. 10PCh. 5 - A compact disc spins at 2.5 revolutions per...Ch. 5 - Prob. 12PCh. 5 - Prob. 13PCh. 5 - Prob. 14PCh. 5 - Prob. 15PCh. 5 - Consider the motion of a rock tied to a string of...Ch. 5 - Prob. 17PCh. 5 - Prob. 18PCh. 5 - Prob. 19PCh. 5 - Prob. 20PCh. 5 - Prob. 21PCh. 5 - Prob. 23PCh. 5 - Prob. 24PCh. 5 - Prob. 25PCh. 5 - Prob. 26PCh. 5 - Prob. 27PCh. 5 - Prob. 29PCh. 5 - Consider a Ferris wheel in which the chairs hang...Ch. 5 - Prob. 31PCh. 5 - Prob. 32PCh. 5 - Prob. 33PCh. 5 - Prob. 34PCh. 5 - Prob. 35PCh. 5 - Prob. 36PCh. 5 - Prob. 37PCh. 5 - Prob. 38PCh. 5 - Prob. 39PCh. 5 - Prob. 40PCh. 5 - Prob. 41PCh. 5 - Prob. 42PCh. 5 - Prob. 43PCh. 5 - Prob. 44PCh. 5 - Prob. 45PCh. 5 - Prob. 46PCh. 5 - Prob. 47PCh. 5 - Prob. 48PCh. 5 - Prob. 50PCh. 5 - Prob. 51PCh. 5 - Prob. 52PCh. 5 - Prob. 53PCh. 5 - Prob. 54PCh. 5 - Prob. 55PCh. 5 - Prob. 56PCh. 5 - Prob. 57PCh. 5 - Prob. 58PCh. 5 - Prob. 59PCh. 5 - Prob. 60PCh. 5 - Prob. 61PCh. 5 - Prob. 62PCh. 5 - Prob. 63PCh. 5 - Prob. 64PCh. 5 - Prob. 65PCh. 5 - Prob. 66PCh. 5 - Prob. 67PCh. 5 - Prob. 68PCh. 5 - Prob. 69PCh. 5 - Prob. 70PCh. 5 - Prob. 71PCh. 5 - Prob. 72PCh. 5 - A rock of mass m is tied to a string of length L...Ch. 5 - Prob. 74PCh. 5 - Prob. 75PCh. 5 - Prob. 76PCh. 5 - Prob. 77P
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- A car, with mass m, is racing around a circular track with some velocity v. If the car suddenly had its mass doubled and velocity tripled, what would happen to the centripetal acceleration needed for the car to continue circular motion? A.)it would be three times greater B.) it would be 6 times greater C.) it would be 9 times greater D.) it would be 18 times greaterarrow_forwardA car traveling at 20 m/s rounds a curve so that its centripetal acceleration is 5 m/s^2.What is the radius of the curve? a. 8 meters b. 4 meters c. 80 meters d. 160 metersarrow_forwardWhat is the magnitude of the car's centripetal acceleration when the car is at the top of the loop? (The correct answer is: 9.8 m/s^2) Just need the steps to get therearrow_forward
- What is the average centripetal acceleration of a race car that travels once every 8 seconds around a circular track that has a radius of 70 meters?arrow_forwardA runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 35 m. The runner starts the race at a constant speed. If she completes the 200 m dash in 22.6 s and runs at constant speed throughout the race, what is the magnitude of her centripetal acceleration (in m/s2) as she runs the curved portion of the track?arrow_forwardA runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 35 m. If he completes the 200 m dash in 24.2 s and runs at constant speed throughout the race, what is the magnitude of his centripetal acceleration (in m/s2) as he runs the curved portion of the track?arrow_forward
- A runner taking part in the 200-m dash must run around the end of a track that has a circular arc with a radius of curvature of 30.0 m. The runner starts the race at a constant speed. If she completes the 200-m dash in 23.2 s and runs at constant speed throughout the race, what is her centripetal acceleration as she runs the curved portion of the track?arrow_forwardFor each of the following situations involving circular motion, identify what force provides the centripetal acceleration. Draw a force diagram showing all the forces on the object. (a) The earth, rotating around the sun (b) A bicycle being ridden around a corner on a banked velodrome (c) A person sitting in a car travelling around a bend In a popular amusement park ride, people stand on a circular platform which sits inside a vertical cylinder. As the cylinder and platform spin about a vertical axis, the riders feel as if they are pushed against the inside wall of the cylinder. Once the rotation rate becomes sufficiently high, the “floor” of the ride drops, leaving those inside effectively pinned to the wall. Draw force diagrams for the following cases. Is your force diagram consistent with the requirements for circular motion? Justify your answer. (a) The platform and the cylinder are spinning slowly. The people inside are standing on the floor. (b) The platform and the cylinder are…arrow_forwardYou are swinging a ball attached to a rope so that it undergoes uniform circular motion. You double the speed you are swinging the ball. The resultant change in centripetal acceleration would be (a) 2 times smaller (b) 4 times smaller (c) 2 times greater (d) 4 times greaterarrow_forward
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