Thank all of you for your help. I think all the professor expects from us, is this "simplified, ideal" solution of the problem. I equated the equations , and I got the square root of ((μ*g)/r) as a solution for the angular speed above which the rubber will fly off the disk.
Homework Statement
We place a rubber on the edge of a rotating disk. What forces act on the rubber? At what angular velocity, why and in what direction will the rubber fly off the disk?
Homework Equations
http://images.tutorvista.com/cms/formulaimages/83/angular-speed-formula111.PNG
The...