Rotational Dynamics (id: 359d07904)

本题目来源于试卷: Rotational Dynamics，类别为 美国物理杯赛(Physics Bowl)

[单选题]
13.39: An ideal unifzgj zx1j-p :p,orm solid d1hus(-v p msvrm ;mu5mzs(1l r/ g+(uhisk and an ideal uniform ring each have mass M and radius R. Each object begins purely rolling without slipping down a rough inclined plane spvh(ugus-/(m(1r umsrvhmm ;5l1 +z . The coefficients of friction for the disk and ring with the incline are $μ_disk> μ_ring$.
As each object rolls down the incline, which statement is correct about the force of friction from the incline on the objects?

A. The ring experiences a greater force of friction than the disk.
B. The disk experiences a greater force of friction than the ring.
C. The force of friction is equal and non-zero for both objects.
D. The force of friction is equal to zero for both objects.
E. Nothing can be concluded about the force of friction without more information.


参考答案:  A


本题详细解析: 暂无

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