[问答题]
Two blocks, each of mass m, are attached p l ;o3trm263varp2ps.qzk7pu lx90xg d (24xah jhq*to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal pl9 (zqh2a4*g 7up kxq0x hdj.xosition and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
