[问答题]
Two blocks, each of mass m, are attached to the z)ad 2mctc.;bp pw.la/.acv gh9 ty5-ends of a m wt+fb;h ooc)9assless 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 direction of the net torque on hcot +bo;w)9 fthis system.
Post time 2025-2-18 20:00:22
