A tennis player places a 64 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.055 kg tennis ball horizontally with a velocity of 32.6m/s toward the north. What is the nal velocity of the machine? m 1 Type your answer... a 1 point ,9 Two carts A with masses of 5.70 kg and B has a mass 3.03 kg move toward each other on a frictionless track with speeds of 5.25 m/s and 2.66 m/s respectively. The carts stick together after colliding head-on. Find the final speed. Type your