[填空题]
Assume that a 1.00-kg( egtlh8phq85jc u qe1:b g4o: b/te2dpog9u f ah fp7bp l5:s9f*6zh,call is thrown solely by the action of the forearm, which rotates ado29f/pcgbt l:h,5*9 z uf p 6h7peafsbout 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
Post time 2025-2-18 20:00:22
