[问答题]
Two blocks, each of mass m, are 7 plx2ki6fnd 5hy.+kp attaqiamyuu1l0 xve0xd 4j,0 * y6bched to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horida ,uvyilx604jeb xqyu0m1* 0 zontal position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
