[问答题]
Two blocks, each of mass m5v ,jwc klk(rdc bnn;r1 0da:+rvo.for e;y+1, are attached to the endzv;)7r3kkaflc,b9d (v,mdzd s of a massless rod which pivots as shown in Fig. 8–40. Initially the rod is held in the horizontal position and then;zvmadldk9c( b,df k ,)v7 z3r released. Calculate the magnitude and direction of the net torque on this system.
Post time 2025-2-18 20:00:22
