[问答题]
Two blocks, each of 7u5kzsmk *c(7 xy;cb n (jce*pmass m, are attached to the ends of a massllpl2d t77yexd 8;k1b iess rod which pivots as shown in Fig. kyd7ldpe8; 7 1b2ixtl8–40. Initially 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
