本题目来源于试卷: Collision and momentum conservation，类别为 美国物理杯赛(Physics Bowl)
[单选题]
09.10: A car with mass M initiavhg , 9d5wv2o gd.hnj a;up9lm3 hl3)qlly travels to the East with speed 4V. A truck i;movw g5p9d. vu,l2d)n 9 l3h3jhhqagsur0i:q-s9 a enitially travels to the West with speed 3V. After the vehicles collide, they move together to the West with comesqir0-9 :us amon speed 2V. What is the mass of the truck?
A. 2M
B. 3M
C. 4M
D. 5M
E. 6M
参考答案: E
本题详细解析:
暂无
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