gc textbook chapter 8 Rotational Motion (id: 5f0a4a15a)

[问答题]
A sphere and a cylinder havb,sh kzk7r6m* e the same radius and the same m-kty 9,c-chj w(hfyvl zd-0/ vass. They start from rest at the top of an incline. Which reaches the bottom first? Which has the greater speed at the bottom? Which hacyv/-j(tyz fwl k-v 0h9d-ch ,s the greater total kinetic energy at the bottom? Which has the greater rotational KE?

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