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

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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]
Assume that a 1.00-kg ball is thrown solnp,z 3mfu6 f5ed jx8)ab/vjpd 409ktd -wxy.i7;u0ubp*l wlzely by the action of the forearm, which rotates about the elbow joinp0uz;ly bwuxl-*w.7 it 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% 


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