[问答题]
Two blocks, each of mass m, are at hutl(o/tw f.zh5b0e0tached to the ends of a mar7h 3uqerz-gf(h) xz)ssless rod which pivots as shown in Fig. 8–40. Init(r) q3h e rz-7fzux)ghially the rod is held 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
