Asked by Bob

.17 kg hockey puck initial velocity 21 m/s stops 62m away. what is coefficient of friction?

Answers

Answered by drwls
Friction work = initial kinetic energy

M*g*mu*X = (1/2) M Vo^2

mu = Vo^2/(2*g*X) = 0.363

Note that the mass does not matter.

That number seems too high for something sliding on ice, but that's what I get. Someone probably invented these numbers out of thin air.
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