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 balancnf8;1h)-yead 1evv/ 7skj evhed v.r271sslgwpcm7gz*c .a z h x5ertically 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 ground? [Hint: Use conservation of enerwxhs zlp1257.*ggracc s 7.zmgy.]    $m/s$

参考答案: 8.22±2%


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