2. The object, which is very similar to the impact pendulum we will discuss, consists of an 8-lb, 22inch slender bar welded to a 12-lb disk. It is released from

rest in the horizontal position 1.Using a computer program, plot the force in the pin at A as a function of 0 fro 0= 0 to 90. Partial answer: at 0= 45°, A= 37.73 lbs, CM is 20.6inches from A (you must prove this).