[问答题]
Two blocks, each of ms p k,tm7;q jwi6ql6u0pzyqjat+n1 b7;l;1tl ass 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 direca tzlj1+ l1b;t n7;pqytion of the net torque on this system.
Post time 2025-2-18 20:00:22
