Consider a ball that rolls down a hill as compared to an object (such as a skier) that slides down a frictionless hill of the same height. Which of the following statements is correct regarding their speeds at the bottom of the hill?
(a) The ball has a higher linear speed because it does not slip.
(b) The sliding object has a higher speed because the hill is frictionless.
(c) The ball and skier have the same speed at the bottom of the hill.
(d) The ball has a smaller linear speed because some of its kinetic energy goes into rotational motion.
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