## 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 7.5

Question

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 7.56 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 6.22 rev/s.

Required:
a. Which rate of rotation gives the greater speed for the ball?
b. What is the centripetal acceleration of the ball at 8.16 rev/s?
c. What is the centripetal acceleration at 6.35 rev/s?

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2 weeks 2021-07-19T14:00:04+00:00 1 Answers 2 views 0

a)

b)

c)

Explanation:

From the question we are told that:

Initial angular velocity

Initial Length

Final angular velocity

Final Length

a)

Generally the rotation with the greater speed is

b)

Generally the equation for centripetal acceleration at 8.16 is mathematically given by

c)

At 6.35 rev/s