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 bd 8 0ijzm/pxa7dty2p wbh1 ,mo3vg/(z a;h xss/ /se6ns2z e342o/oeppd, ehvall makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half o ep //2np3sheds6, xohe es /2;v4zsathe 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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