[问答题]
Two blocks, each of mass m, are ac /2mp rsxr(l0ttached to ) 8q94b a6ngtv4 dpfbuthe ends 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 magnita4)8b6v9ndqu t 4fbgpude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
