[问答题]
Two blocks, each of 4wwbs)jqk 0c6mass md8u zax svv4--, are attached to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position d vzvs u4--8xaand then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
