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It is probably easy, but i don't know where to start

A hockey puck leaves a player's stick with a speed of 9.50 m/s and slides 27.0 m before coming to rest.

Find the coefficient of friction between the puck and the ice.

Thank You for helping me!!!

1 answer

Compute the average force needed to stop a puck in 27.0 m. Here's how:

Work done against friction = initial kinetic energy.
M g mu X = (1/2) M V^2
'mu' is the number you want. Note that the mass m cancels out. g is the acceleration of gravity. X = 27.0 m
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