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 verw0a.dh, pkap4 tically on its tip. I +0d69andpb)+rdhjvs( k7ltc t starts to fall and its lower end does not slip. What will be the speed of the upper end of the pole just before it hits the groun+ 0 nrbh6+dv9s )cdptl7d(a jkd? [Hint: Use conservation of energy.]    $m/s$

参考答案: 8.22±2%


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