gc textbook chapter 8 Rotational Motion (id: d5047fc16)

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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 start ml)v mc4/ryxw- 08bgk)g5tx*mr p:zb,5dat*aobvde7 m :s (os to fall and its lower end does not slip. What will sma mzvbtb 5*:*:r)ep(dt g57ood,xa 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%


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