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 initialz8 hg5.aj mc0)mw:dtm ly travels to the vjyvs 4gxnrfv*s; o+ n /gcro 8,5gx;)East with speed 4V. A truck initially trav ys;v4gv 8j /xog5fon xvcsrg;n+r,*)els to the West with speed 3V. After the vehicles collide, they move together to the West with common 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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