In a game of pool, a 0.4 kg cue ball is traveling at 0.80 m/s when it hits a slower striped ball moving at 0.38 m/s. After the collision, the striped ball moves off at 0.62 m/s. What is the magnitude of the final velocity of the cue ball? Assume all pool balls have the same mass. 0.20 m/s 0.56 m/s 1.0 m/s 1.8 m/s