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A 100-gram hockey puck is initially moving horizontally to the left at a speed of 10...

A 100-gram hockey puck is initially moving horizontally to the left at a speed of 10 m/s, but is then slapped with a hockey stick to the right and moves off with a speed of 20 m/s. If the collision time between the hockey stick and the puck is ∆t = 0.030 s, what is the average force of the hockey stick on the puck, in Newtons?

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