本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified
[问答题]
Two spheres look identi8e njygwowe8y de(es,s0j13/ +e gh*rcal and have the same mass. However, one is holl7v 3tyu fen .- bvlwl9.:je2ohow and the other is solid. Describe 7vjt.fewo2e.9l : - y bnhl3uvan 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