本题目来源于试卷: Physics Unit7: Linear Momentum,类别为 通用国际物理
[单选题]
A 3.0-kg object moves to the right at .);mp4ppkci g4.0 m/s. It collidevb,z077a yetas head-on with a 6.0-kg object moving to ae tb0z,y7av7 the left at 2.0 m/s. Which statement is correct?
A. The total momentum both before and after the collision is 24 kgm/s.
B. The total momentum before the collision is 24 kgm/s, and after the collision is 0 kgm/s.
C. The total momentum both before and after the collision is zero.
D. None of the above is true.
参考答案: C
本题详细解析:
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