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]
94.33: An air track car with mass m and vi* e149.wr m2nzn rjexe5k(okjjn s0 yr oj)ktjkh.(/ )locity v to the right collides elastically with a second air track car with mass 2m and initial velocity zero. What is thstj/y konr (j.5kjk0kh)j ()oe velocity of the 2m car after the collision?
A. $\frac{2}{3}v$ to the right
B. $\frac{\sqrt{2}}{2}v$ to tℎe rigℎt
C. $\frac{1}{2}v$ to the right
D. $v $to the left
E. $\frac{1}{3}v$ to the left
参考答案: A
本题详细解析:
暂无
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