[问答题]
Two blocks, each of mass m, are attached to thw*m4g;fz;m5zcf a 2lywkb, )4d n-p xbe ends of a massless rod which pim8 feii9w*mzneu 89h;votm;8i e ehwn99*fmu8zis as shown in Fig. 8–40. 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
