A tennis player places a 44 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.064 kg tennis ball horizontally with a velocity of 35.2 m/s toward the north. What is the final velocity of the machine?

Answer 1

m1 * v1 = m2 * v2
44v = .064*35.2

Answer 2

.512

Answer 3

.0512 m/s south