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 and have the same/:nsss p2o en /afq7z. ma:- icnm1tg pmx5hq4ss 3e 0dsk90/oh;wv s l1xss. However, one is hollow and the other is sol-w:mtkxvq0 x3h1 msgenc5lp si9 ;0s/o1d sh4id. 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