gc textbook chapter 8 Rotational Motion (id: 3f117a187)

[问答题]
Two solid spheres simultaneously startxv k33yei;3efbc,nccq 2m /)s ro4bm s3. npb7iblling (from rest) down an incline. One sphere has twice the radius and twice the mass of the other. Which reaches theip m4b.b7n b3s bottom of the incline first? Which has the greater speed there? Which has the greater total kinetic energy at the bottom?

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