Turntable ?? 1. The problem statement, all variables and given/known data A block of mass M is place a Distance R from the center of a turntable rotating at W radians/sec. A. If the turntable is a frictionless surface, explain the motion of the block. B. If the turntable has coefficient of static Friction Us and the block is ready to begin slipping when the turntable is rotating with W radians/sec, find an expression for Us in terms W, R, and g. 2. Relevant equations 3. The attempt at a solution What is it talking about explain the motion of block? and I don't even know where to begin with the second part because I don't understand the first. I know the block will begin to slide and eventually fall off the turntable. But I'm not sure what its asking for.