gc textbook chapter 8 Rotational Motion (id: 0f31c318c)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
Assume that a 1.00-kg ball is thrown solely by m)g8 xh;rg/ qzq34fs sthe acti xjigzzah9f k: 2a3w8;on of the forearm, which rotates abou2 x8 ;hkazfiwza9:jg3t the elbow joint under the action of the triceps muscle, Fig. 8–45. The ball is accelerated uniformly from rest to 10 $m/s$ in 0.350 s, at which point it is released. Calculate
(a) the angular acceleration of the arm,    $rad/s^2$
(b) the force required of the triceps muscle. Assume that the forearm has a mass of 3.70 kg and rotates like a uniform rod about an axis at its end.    N

参考答案:
空格1: 92.17±2%  空格2: 790±2% 


本题详细解析:

微信扫一扫，阅读更方便