Homework Help: physics

Posted by Noah on Tuesday, December 11, 2012 at 12:57pm.

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?

physics - Damon, Tuesday, December 11, 2012 at 1:26pm
Force = change in momentum / change in time

28 = m v/t = .118 v / .16

v = 28 (.16)/.118 = 38 m/s

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