本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
A 2.0-kg mass moves with a speed o-( t/aqgl pl )e7mnq0qf 5.0 m/s. It collides head-on with a ag9x zh u,v0a4k *vgl83.0 kg mass at rest. If the collision is perfectly inelastz *a8axkglv0 49h v,guic, what is the speed of the masses after the collision?
A. 10 m/s
B. 2.5 m/s
C. 2.0 m/s
D. 0, since the collision is inelastic
参考答案: C
本题详细解析:
暂无
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