[问答题]
Two blocks, each of mass m kvy*nz-1/ .v6e,yorijm -pr u, are r:q g. (z-u7zv qvfgj7attached to the ends of a massless rod which pivots as shown v7jrz.v:fg7guqz (q- in Fig. 8–40. Initially the rod is held in the horizontal position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
