本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified
[问答题]
Two spheres look identical a4jzw85+ b8cjdtkd n:l nd have the same masspv15y7+ rwxgi4 *jxg gqpx;9m sdp(m0 . However, one is hollow and the other is qp g7w p1xy*x d;sr+g0i59 jx4( mgpmvsolid. Describe an experiment to determine which is which.
参考答案:
The two spheres would have different rotational inertias. The sphere that is hollow will have a larger rotational inertia than the solid sphere. If the two spheres are allowed to roll down an incline without slipping, the sphere with the smaller moment of inertia (the solid one) will reach the bottom of the ramp first. See question number 13 for an explanation of why this happens.
本题详细解析:
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Post time 2025-2-18 20:00:22