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 starts to 9y p;hun9b;oj fadjb-znt2q v *y. s2y4wq7/u opll and its lower end does not slip. What will be the speed of the upper end of the pole just before it t2*uq/ bjqnp7-zd syw.o24 yvhits the ground? [Hint: Use conservation of energy.]    $m/s$

参考答案: 8.22±2%


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