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

[问答题]
A sphere and a cylinder have the same . ;e0n 2xbhdep) rh7jk66xvvuradius and the same w52mee /1c7 jviwu4sw fy+akc s;p./emass. They start from rest at the top of an incline. Which reaches the bottom first? Which has the greate1sc .2psfm7 yc +k/w/w ea;e5ejuv4wir speed at the bottom? Which has the greater total kinetic energy at the bottom? Which has the greater rotational KE?

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