It is interesting to compare the result for the rolling ball in Section 9.2 with

Q: It is interesting to compare the result for the rolling ball in Section 9.2 with

then answer is (A)The ball has a smaller linear speed because some of its kinetic energy goes into b)rotational motion.

ID: 1971643 • Letter: I

Question

It is interesting to compare the result for the rolling ball in Section 9.2 with those we found in Chapter 6 for an object (such as a skier) that slides down a frictionless hill. Which of the following statements is correct?

A)The ball has a smaller linear speed because some of its kinetic energy goes into b)rotational motion.
C)The ball and skier have the same speed at the bottom of the hill.
D)The sliding object has a higher speed because the hill is frictionless in that case.
E)The ball has a higher linear speed because it does not slip.

Explanation / Answer

then answer is (A)The ball has a smaller linear speed because some of its kinetic energy goes into b)rotational motion.

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It is interesting to compare the result for the rolling ball in Section 9.2 with

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