[问答题]
Two blocks, each of ma r7aoxyt:2 vr 57i;vhuag 0m7dss m, are attached to the ends of a massless rod whd)d7j(lrl6y we0uic4tu hic7-l o w34ich pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then released. Calculate theowd)(r 40ul-4eu t yl63ch 7ici dwl7j magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
