[问答题]
Two blocks, each of mass m, are attached to the ends of a3kfws it 3*i3ukur, 8v mas7vd y*r4amk yy 3;oia9q;z *sqsless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then released. Calculamyr*da qzys ;7v4k3y a9o;qi*te the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
