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Frozen Pond

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A Hockey Puck is given an initial speed of 30m/s on a Frozen Pond. The puck remains on the Ice and slides 103m

before coming to rest. The acceleration of gravity is 9.8 m/s/s. What is the coefficient of friction between the puck and the Ice?

First you need to use one of the kinematics equations to calculate the deceleration of the Hockey Puck as it traveled across the ice. (See link below for some formulas.)

The deceleration of the puck is solely due to the friction with the ice, so you can use Newton's Second Law to relate the frictional force with the acceleration you just calculated. (See the third link below for the friction equation.) Keep in mind that the normal force on a horizontal surface is the mass times gravity.

You can divide both sides of the equation by the mass to remove that unknown and then solve for the friction:

mu = 0.446