[问答题]
Two blocks, each of mass m, are attached to the ends of a massless r *+w7por8vhm 8a;hwwdyz8xy9 be )k0i 1vqx7kh l9k gpm*p25nod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then relea9lvq7mgxp *k p5k2 n1hsed. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
