[问答题]
Two blocks, each of mass m, are at.uu fgeyv -4 x-g9yo.zx:w.xjtached to the ends of a massless rod which pj:1t- yoh-vq+5p ku, 6yfxfpx ivots as shown in Fig. 8–40. Initially the yjyuhp,+x- o:qt-fpx5vf16 k 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
