A steel ball of mass m1 = 1.1 kg and a cord of length of L =1.8 m of negligible mass make up asimple pendulum that can pivot without friction about the pointO, as in the figure below. This pendulum is released fromrest in a horizontal position, and when the ball is at its lowestpoint it strikes a block of mass m2 =1.1 kg sitting at rest on a shelf.Assume that the collision is perfectly elastic and that thecoefficient of kinetic friction between the block and shelf is0.10.
a) What is the velocity of the block just after impact?
b) How far does the block slide before coming to rest (assuming that the shelf is long enough)?