[填空题]
Assume that a 1.00-kg b .hatxx7lvvr7:ger 7t1w5 lfw+g()hm all is thrown solely by tgrujh7x hsdd:g sy,,v:3+km 4he action of the forearm, which rotates about th3 d,m:x: gkd4+7sy uhjsrhv,g e 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
Post time 2025-2-18 20:00:22
