本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
In what circumstances can:gn*-k7 x2z 7fmzg/o ud2tdgn the angular velocity of system of bpihg2: 8 29eksw(st xparticles change without any change in the system's angulah 29tpw iex:b g2k(8ssr momentum?
A. This cannot happen under any circumstances.
B. This can happen if a net external force acts on the system's center of mass.
C. This can happen if the only forces acting are internal to the system.
D. This can happen if an external net torque is applied properly to the system.
参考答案: C
本题详细解析:
暂无
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