1. The problem statement, all variables and given/known data A small puck is placed on a disk spinning with angular speed OMEGA around axis perpendicular to the disk and passing through its center. The coefficient of static friction between the disk and the puck is MU. At what distance(s) from the center of the disk will the puck be at rest? 2. Relevant equations Rotational Inertia of Rotating Disk: I=(1/2)*M*R^2 Force of Static Friction F=MU*(NORMAL FORCE) 3. The attempt at a solution By "at rest" I believe it means when the puck is rolling ON the spinning disk in a way that keeps it in the same place. But I have no idea how to determine the distance the puck needs to be at for that to happen.