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How to find acceleration with a force, a mass, and coefficient of sliding friction?

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Problem: While ice skating, you push off of a wall with a force of 200.0N.  Calculate acceleration if your mass is 50.0 kg and the coefficient of sliding friction between your skates and the ice is .2  .  Please explain how you solved this situation.
asked Mar 31, 2014 in Highschool Physics by Niomi M.

1 Answer

0 votes
Based on Newton's Third Law, you will be pushed back by the wall with the same 200 N force. Name this fore F. Then the net force on you would be ||F_{net}=F-f|| where ||f=\mu N=\mu mg|| is the sliding frictional force.  

Your acceleration is then ||a=\frac {F_{net}}{m}||.
answered Apr 10, 2014 by PhysicsDude (21,750 points)
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