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Shooting A Hockey Puck On A Rough Surface





In this video, a plastic hockey puck is used. The puck weighs 4 oz, or 0.11 kg, and the accepted value for the coefficient of static friction between plastic and dry, rough concrete is 0.3. The kinetic friction between these two surfaces is 0.12.

Below is the data concerning the puck's movement.

This is a data table of the puck's change in position and velocity


This is a graph of the puck's position over time, and the (A) value for the curve fit is 1/2 its acceleration. 

This is a graph of the puck's velocity over time, and the slope is its average acceleration

In addition to using kinematics, one can also analyze a hockey puck's movement using Newton's Three Laws of Motion and other equations concerning forces.

If the hockey puck has an acceleration of 71.8 m/s², how much force much be applied?

At the instant a force is applied to the hockey puck, it must first overcome the force of static friction before it can begin to accelerate. With this in mind, what is the bare minimum force required to set the hockey puck in motion?


  

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