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gc textbook chapter 8 Rotational Motion (id: d5047fc16)

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Post time 2025-2-18 20:00:22 | Show all posts |Read mode
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 idm bki 6lh- )o7kb+*c0fdsw-cs balanced vertically on its tip. It starts to fall and rtg jd0dxe;wtq v86s g(h8 bey18ed61its lower end does not slip. Why xg1 wqb8r108th;gs dvdd jee6(6e8tat 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%


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