[问答题]
Two blocks, each of mass m, are attached j cl* od75xwzpdj)-k2to the endso:y4z+x varh2 of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in theoh4+ :2vxrzya 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
