[问答题]
Two blocks, each of mass m, are attached to cr8n+4vvw7 e4/fw:ty ounqy :the ends of a massless ro.o-y;9o6u rtaa6c oy hd which pivots as shown in Fig. 8–40. Initially the rod is hoa -69 oo uy.y6trhac;eld 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
