gc textbook chapter 7 Linear Momentum (id: 937dc8333)

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 0.280-kg croquet ball makes an elasti /s81tf/zdru cc head- r,djzj 2,l8sbon collision with a second ball initially at rest. The second b,,sl2rzj jdb 8all moves off with half the original speed of the first ball.
(a) What is the mass of the second ball?    kg
(b) What fraction of the original kinetic energy $(\Delta\mathrm{kE/KE})$ gets transferred to the second ball?   

参考答案:
空格1: 0.84±2%  空格2: 0.75±2% 


本题详细解析:

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