gc textbook chapter 7 Linear Momentum (id: 7a803cbe4)

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 constant friction forc9jwwb+0.wktlc f2i y +e of 25 N acts on a 65-kg skierql o +zp i(q4ks.u2t2v for 20 s. What is the skier’s+k4q(o2 pi ltqusz .2v change in velocity?    m/s

参考答案: -7.7±2%


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