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]
05.04: A freight car is moving rfhexs.ogj +a m. uv d798uh1+freely along a railroad track at 7.0 m/s and fz.emhxc- g2l rdpix+xx u c-))mi(68 4ezo9s collides with a tanker car that is at rest. After t ozhs2x cu cfp9+- x48m)m z exg6i)r.xl-ie( dhe collision, the two cars stick together and continue to move down the track.
What is the magnitude of the final velocity of the cars if the freight car has a mass of 1,200 kg and the tanker car has a mass of 1,600 kg?
A. 0.0 m/s
B. 1.00 m/s
C. 3.00 m/s
D. 4.00 m/s
E. 6.00 m/s
参考答案: C
本题详细解析:
暂无
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