[问答题]
Two blocks, each of mass m, are ad3 w.-xa+2 5z )td qpmhtuy(djttached to the en 2v(/2 cb7**hr zoiyw(vajie-wr8han ds 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-a2h*b7(v vzri8 or jw(i/*wch 2ynea and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
