[问答题]
Two blocks, each of mass m 5udi+ky z*rv), are t,38(wn *iat,zfhf : ol1cacnattached to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then released. Calculate the magnitudectf,8nf lzio wn (*:,ta3a1hc and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
