38. An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.00 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.900 m, he is able to rotate the ball only 6.00 rev/s. (a) Which rate of rotation gives the greater speed for the ballP (b) What is the centripetal acceleration of the ball at 8.00 rev/s (c) What is the centripetal acceleration at 6.00 rev/s?

38. An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.00 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.900 m, he is able to rotate the ball only 6.00 rev/s. (a) Which rate of rotation gives the greater speed for the ballP (b) What is the centripetal acceleration of the ball at 8.00 rev/s (c) What is the centripetal acceleration at 6.00 rev/s?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

38. An athlete swings a ball, connected to the end of a chain,
in a horizontal circle. The athlete is able to rotate the
ball at the rate of 8.00 rev/s when the length of the chain
is 0.600 m. When he increases the length to 0.900 m, he
is able to rotate the ball only 6.00 rev/s. (a) Which rate of
rotation gives the greater speed for the ballP (b) What is
the centripetal acceleration of the ball at 8.00 rev/s
(c) What is the centripetal acceleration at 6.00 rev/s?

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Question 20
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