Physics Unit6: Work and Energy (id: c22e1a4ac)

本题目来源于试卷: Physics Unit6: Work and Energy，类别为 国际高中通用物理

[单选题]
A pendulum of length 50 cm y0pwn9wmyx 6; is pm jag5x*69zr 5l 0bkd8,)p ze )tgcbpwulled 30 cm away from the vertical axis and released from relg 9)g5xbkp* 58bpr0)c,zz6 am dtwjest. What will be its speed at the bottom of its swing?

A. 0.50 m/s
B. 0.79 m/s
C. 1.2 m/s
D. 1.4 m/s


参考答案:  D


本题详细解析: 暂无

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