In a lab, a m = 100 g ball is fired by a spring gun and embeds in a M = 1.5 kg pendulum suspended at the end of a bar. After the collision, the center of mass of the pendulum/ball system swings upwards with negligible friction and air drag to a maximum height ofH = 0.20 m above its initial height. Find the speed of the ball just before its impact with the pendulum. Show all your work so I can follow your reasoning. (10 points)