[问答题]
Two blocks, each of mass m(ab8i3y5g,bnmak dbl;y) rw 0, are ;ck m)k4ua.ctllgn4- attached to the 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 magnitude and directi4-c4ln.lu a;kc kt )gmon of the net torque on this system.
Post time 2025-2-18 20:00:22
