Centre of mass system (id: 634516d22)

本题目来源于试卷: Centre of mass system，类别为 美国物理杯赛(Physics Bowl)

[单选题]
10.34: A 4.0 kg object i uslr hj mge9ftb(r:;c )*:e+un deep6d;a:sqk,ttcs vos m -q7i67wt5gny5 space moves at a constant velocity of 10 m/s along the +x axis. The object suddenly explodes into 2 equal mass pieces. Immediately after the explosion, one -:t qd 6y7si;6,sgavcm oknq57tswt5 piece is now moving directly along the –y axis with a speed of 8.0m/s. What was the size of the impulse (in proper MKS units) provided to this piece now moving along the –y axis from the explosion?

A. 12.8
B. 16.0
C. 25.6
D. 36.0
E. 43.1


参考答案:  C


本题详细解析: 暂无

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