本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 国际高中通用物理
[单选题]
A 50-gram ball movingka20nw :nn.md 5f4:)kxqyx6 dpf-l zz hu,s9 joln9d8 +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately a h9ljnd8us9o ,fter the collision?
A. -3.3 m/s and +6.7 m/s
B. +3.3 m/s and -6.7 m/s
C. -6.7 m/s and +3.3 m/s
D. +6.7 m/s and -3.3 m/s
参考答案: A
本题详细解析:
暂无
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