[填空题]
Assume that a 1.00-kg ball is thrown solely by the action oegnvt2-n 4qlrjl0o3 7m;x+ kuf the forearm, xs 1tmq/en6wa)9k /. 8pdc qmc q5kq/hwhich rotates about the elbow joint under the action of the triceps muscle, Fig. 8–45. The ball is accelerate qm .)tkqq/ n/hdackc5sq9wx6p 1/m8ed 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
