Asked by Ted
                A 110 g hockey puck sent sliding over ice is stopped in 14.9 m by the frictional force on it from the ice. (a) If its initial speed is 7.8 m/s, what is the magnitude of the frictional force? (b) What is the coefficient of friction between the puck and the ice?
            
            
        Answers
                    Answered by
            drwls
            
    (a) Friction force * distance = (initial kinetic energy)
Solve for the friction force.
(b) Divide friction force by puck weight to get the coefficient of (kinetic) friction.
    
Solve for the friction force.
(b) Divide friction force by puck weight to get the coefficient of (kinetic) friction.
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