5th Edition

ISBN: 9780321976444

Author: James S. Walker

Publisher: PEARSON

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If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!

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Textbook Question

Chapter 6, Problem 78GP

Predict/Calculate A popular ride at amusement parks is illustrated in Figure 6-74. In this ride, people sit in a swing that is suspended from a rotating arm. Riders are at a distance of 12 m from the axis of rotation and move with a speed of 25 mi/h. (a) Find the centripetal acceleration of the riders. (b) Find the angle θ the supporting wires make with the vertical. (c) If you observe a ride like that in Figure 6-74 or as shown in the photo on page 178, you will notice that all the swings are at the same angle θ to the vertical, regardless of the weight of the rider. Explain.

Chapter 6, Problem 78GP, Predict/Calculate A popular ride at amusement parks is illustrated in Figure 6-74. In this ride,

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Chapter 6, Problem 77GP

Chapter 6, Problem 79GP

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