[问答题]
Two blocks, each of yu:7 a q)skjgcux)3c4 4- noec3 xultwgom9rav 684 +rmass m, 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 and then released. Calculate the magnitude and di6w39+x v8r mgolurt4 arection of the net torque on this system.
Post time 2025-2-18 20:00:22
