[问答题]
Two blocks, each of mass m, are attafv9s9q y mcwjlwpm-1 4y2t(/x wghd0qc9 () qcc; rd+8gao sn+ched to the ends of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in n0d qq+ 9wcc)(+;o s8 agdhrgcthe 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
