gc textbook chapter 8 Rotational Motion (id: d5047fc16)

admin

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 balancrb zechf :c)k:1g6q(v-gab . ked vertically+cca ip s7-u1sgt14iwy*/n rr on its tip. It starts to fall and its lower i14ri u-ratpws c*s/cng1 y+7 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 energy.]    $m/s$

参考答案: 8.22±2%


本题详细解析:

微信扫一扫，阅读更方便