[问答题]
Two blocks, each of mass m, are attachedww5arv+ /6ip , qn 0vxa7+u7ig bdv6jv to the ends of a massless rod 2a-i8pg+,gzefo b7an which pivots as shown in Fig. 8–40. Initially the rod is held in the hoa 2i-fg 7epn+g,zba 8orizontal position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
