gc textbook chapter 7 Linear Momentum (id: a45b15cf5)

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 ball of mass 0.440 kg moving east (+x direction) with a speed of collides sj6pdyy(b* )5 dw1q40f9v9xeog axbm hea sbq9x(vg 5fbx*e6y4 9oy 0m 1pdwj)d2 w8q4vn0 r kyf.9rq1ywulm g*ad-on with a 0.220-kg ball at rest. If the collision is perfectly elastic, what wi.rf9wwmnyu 1 yqq gl2rk*0v4 8ll be the speed and direction of each ball after the collision?Let A represent the 0.440-kg ball, and B represent the 0.220-kg ball. $v'_A$    m/s  ----待选择----eastwest  $v'_B$    m/s  ----待选择----eastwest 

参考答案:
空格1: 1.1±2%  空格2: east  空格3: 4.4±2%  空格4: east 


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