Meriam, Kraige & Bolton — Kinetics of Particles: Problem 3_215

3/215 The elements of a device designed to measure the coefficient of restitution of bat–baseball collisions are shown. The 1-lb “bat” A is a short length of wood or aluminum which is projected to the right with a speed \(v_A = 60 \text{ ft/sec}\) within the confines of the horizontal slot. Just before and after the moment of impact, body A is free to move horizontally. The baseball B weighs 5.125 oz and has an initial speed \(v_B = 125 \text{ ft/sec}\). If the coefficient of restitution is \(e = 0.5\), determine the final speed of the baseball and the angle \(\beta\) which its final velocity makes with the horizontal.