本题目来源于试卷: Rotational Dynamics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
13.40:An ideal uniform solid disk and an ideal uni wla pmtuax8+89 uy,0. fonl3yform ring each have mass M a jplo41o/dr5lw vu0 /d: ic/xbnd radius R. Each object begins purely rolling without slipping down a rough inclined plane. The coefficien up :owio1b/ cx/dvr4d/jl0 l5ts of friction for the disk and ring with the incline are $μ_disk> μ_ring$.
As the objects roll, what is the ratio of the ring’s angular acceleration to the disk’s angular acceleration calculated about an axis perpendicular to the object’s face and through its center of mass?
A. $1:2$
B. $2:1$
C. $μ_disk : μ_ring$
D. $4:3$
E. $3:4$
参考答案: E
本题详细解析:
暂无
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