[问答题]
Two blocks, each of mass m, are attached t6fyu vi;bcf05 o the ends ou/ -br uishiei-:9dc;f a massless rod which pivots as shown in Fig. 8–40. d/i;:ec-ub su9hri -i 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
