posted by Noah on .
A hockey puck has a mass of 0.118 kg and is at rest. A hockey player makes a shot, exerting a constant force of 28.0 N on the puck for 0.16 s. With what speed does it head toward the goal?
Force = change in momentum / change in time
28 = m v/t = .118 v / .16
v = 28 (.16)/.118 = 38 m/s