[问答题]
Two blocks, each of mass m, are atta:g mi,h84v iqdched to the end 9qgf5(2sgp mas of a massless rod which pivots as shown in Fig. 8–40. Initially the r a5q9gf ms(p2god 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
