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

[问答题]
Two solid spheres simultaneously start rolling (from rest) down jiwz:b 9 y7ag+ qsxhxlbi-/ +,an ib5v t+6 r+elfjncline. One sphere has twice the radius and twice the mass of the other. Which reaches the bottom ov6 b+fl te5jr+f the incline first? Which has the greater speed there? Which has the greater total kinetic energy at the bottom?

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