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 very light object mood.10br5 +xunz3o5/txmyf y/r0thalving with speed v collides head-on wiflne1.nca +biv*r/v (b g)m7sth a very heavy object at rest, in abv.e1 n )/+mbigrs7acf vn*l( frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is
A. slightly greater than v.
B. equal to v.
C. slightly less than v.
D. much less than v.
参考答案: D
本题详细解析:
暂无
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