gc textbook chapter 7 Linear Momentum (id: 729c97197)

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]
An object at rest is 2ywg8 rz*.qzc suddenly broken apart into two fragmentsw3m01 m*xb 7j6-klw wmu;b wj0nb mg:u by an explosion. One fragment acquires twice the kinetic energy of the other. What is m7u;b* xw 1-bmujgl m6k3mw0bwwj:0n the ratio of their masses?   

参考答案: 0.5±2%


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