gc textbook chapter 8 Rotational Motion (id: d5047fc16)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
A 2.30-m-long pole is balanced vertically on its tip. It starts to sn7a:.63w4 owc jnk e0iyf)qtrx x l bc5cpdmte80(kpoyagi1/ (8:e8fall and its lower end does not xe5o8ldpi (0exk8mt/acc8(b:p1y gr slip. What will be the speed of the upper end of the pole just before it hits the ground? [Hint: Use conservation of energy.]    $m/s$

参考答案: 8.22±2%


本题详细解析:

微信扫一扫，阅读更方便