Kinetic Friction: Stopping a 2500kg Car on Icy Road

cowasocke
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you are driving a 2500.0 kg car at constant speed of 14.0 m/s on a straight, level, icy road. you slam on brakes and stop after 25.0 m. what is coefficient of kinetic friction between your tires and the icy road?
 
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Show some work first!
Hint: F = ma.
 
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