A 0.5 kg soccer ball is kicked with a force of 50 Newtons for 0.2 sec. The ball was at rest before the kick. What is the speed of the soccer ball after the kick?

Answer 1

impulse=momentumchange
50*.2=.5*V solve for V

Answer 2

Force * time = change of momentum
(called "impulse" by the in crowd)

50 * .2 = .5 ( v - 0)

v = 20 m/s