本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
You (50-kg mass) skate on ice at 4.0 m/s to / u qlxdlgocn x:n:n9/:8vbyz0r)tt5 greet your fwe/oo8)mlfdk*)k f/; mw1 wthq0ujr7 riend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both wt;ff lw8or)eq j)* 1m0h7/ d /ukwomkmove off together?
A. zero
B. 2.2 m/s
C. 5.0 m/s
D. 23 m/s
参考答案: B
本题详细解析:
暂无
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