[问答题]
Two blocks, each of mass m, are attached to the efrdy 0 u)q,1 b;kw,m9jzjwdkia7u-j4 nds of a massless rod wpxxp/q qu 93u.hich pivots as shown in Fig. 8–40. Initially the rou/pqpu.39x x qd 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
