gc textbook chapter 7 Linear Momentum (id: 5e345fbaa)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理

[填空题]
A 12,600-kg railroad car travels alone on alevel frictrrwm1d n;vi7/1jh o4v ionlejdj yc4 0b2t6q7ql)c qe fh6q- g1ve.qss track with a constant speed of q 67gh-y1ceqefjb d0)6c24t lvqj q.q18m/s A 5350-kg load,initially at rest, is dropped onto the car. What will be the car’s new speed?    m/s

参考答案: 12.6±2%


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