[问答题]
Two blocks, each of mass m, are attached to the ends of a 3eb-0ttptjy3ix*xp ; massless rod whichd;xxb d+. f b-*fw1omr pivots as shown in Fig. 8–40. Initially the rod is held in the horizo d b1o.;rw-b xm*xf+fdntal position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
