[问答题]
Two blocks, each of m;r-f ,g-gtn4q6kpaduo bdu0 5ass m, are attached to the ends of a massless rod whm3p b-ydm,5 /yxl,v tcich pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal ,dcm3lb, /mtypy-v x5 position and then released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
