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 2 m/s, and after impact it is moving at 1.15 m/s at 50' from the original direction. 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. of m/s at below the horizontalIn an elastic collision, a 440-kg bumper car collides directly from behind with a second, identical bumper car that is traveling in the same direction. The initial speed of the leading bumper car is 5.2 m/s and that of the trailing car is 5.5 m/s. Hint a. Assuming that the mass of the drivers is much, much less than that of the bumper cars, what are their final speeds? The speed of the leading bumper car after collision is m/s, and the speed of the trailing bumper car after collision is m/s. b. Assuming that the total mass of leading bumper car is 35% greater than that of the trailing bumper car, what are their final speeds? The speed of the leading bumper car (now 35% more massive) is m/s, and the speed of the trailing bumper car after collision is m/s