A billiard ball, labeled 1, moving horizontally strikes another billiard ball, labeled 2, at rest. Before impact, ball 1 was moving at a speed of 3.3 m/s, and after impact it is moving at 1.55 m/s at 50" above the horizontal. If the two balls have equal masses of 300 g, what is the velocity of the ball 2 after impact? Express the velocity as a magnitude at an angle below the horizontal. Hint 1 Hint 2 Hint 3 m/s at " below the horizontal