[问答题]
Two blocks, each of mt,jtykv(hi0 glnk n q,zqw56f d+92 a(ass m, are attached to the ends of avic71 ). o-mvjkorl4k massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then released. Calculatm1)c7i. k 4-rvolojvke the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
