gc textbook chapter 7 Linear Momentum (id: f653fb0d4)

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 0.145-kg baseball pitched at 39 m/s is hqco.0d k4u5y h69( r h;nf:cw)bzsydz it on a ho lq92 4mehcvw7rizontal line drive straight back toward the pitcher at 52m/s If the contact time mh7w9 lcqe2v4 between bat and ball is $3\times10^{-3}$s calculate the average force between the ball and bat during contact.    N

参考答案: 4400±2%


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