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 kgunr)/zv;h+ugaag ,3 j moving east (+x direction) with a sswe75om , w 1kr1c.6nvpjeas/ peed of collides head-on with a 0.220-kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?Let A represent the 0.440-kg ball, and B represent the 0.2skmwp w6j1e1. sr5 7c/,va one20-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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