[问答题]
Two blocks, each of 6m,ajtm uy26 rmass-a+e0i. k.d-fvgv (lk sr4 cjb m, are attached to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod abk+lf4vcdv- - (.s jg iekr0.is held in the horizontal position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
