gc textbook chapter 8 Rotational Motion (id: 30cce5165)

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 通用国际物理

[填空题]
A 2.30-m-long pole il/x3jur2u lvi0dx v327xt t i-+/ n lvaig-w7rs balanced vertically on its tip. It 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 grouag 7wrl-+vi/ nnd? [Hint: Use conservation of energy.]    $m/s$

参考答案: 8.22±2%


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