A coin is placed 18cm from the axis of a rotating turntable of variable speeds. If the coefficient of friction is 0.68, what is the maximum r.p.m that the coin can handle before sliding off?
This is basically what I need..
I know there's mv^2/r
But which equation do I need for RPM questions?
The Attempt at a Solution
None at the moment, not sure of the equation I'm supposed to use :S