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 ma euy 1 .y/yxbo.m,*h ,hl8mxyur 4 ;rf,dpe0m8+ywxyk ss M initially travels to the East with speed 4V. A truck initially travels to the West with speed 3V. After the vehicles collide, they mxkrr 8y4md+f0wpe ; ,yove 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
| 
