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An ice-hockey puck of mass moves with an initial speed of along the surface of an ice rink. The puck slides a distance of in a straight line before stopping. What is the average frictional force acting on the puck?
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moves with an initial speed of 
along the surface of an ice rink. The puck slides a distance of 
in a straight line before stopping. What is the average frictional force acting on the puck?
