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

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A 2.30-m-long pole is bff5me lusw67h;w c/4j alanced vertically on its tip. It starts to fall and i,v (* ( g;ummox3bjor/qw+ub qts lower end does not slip. What will be the speed of the upper end of the pole just before it hits the grom;(*,uq+ b qxrbjog(wmo/3vu und? [Hint: Use conservation of energy.]    $m/s$

参考答案: 8.22±2%


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