[问答题]
Two blocks, each of mass m, are attached zo vdrsnofx*jyol(*n0 4lii* x9;- mpw 4:ru+to the ei42jet0dr o (cnds 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 ti(er20dcjo 4the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
