In the mechanism shown below Collar B weighs 20 lbs, Block A weighs 10 lbs,the coefficient-of kinetic-friction between the rod and collar is k=0.10, and the spring rate is K=

30 lbs/in. (a) If Collar B is initially moving to the right with a velocity of 10 in/s, how far does the spring deflect? (b) What is the tension in the cable?2.