[SOLVED] Unstretched Spring and Angular Velocity Problem 1. The problem statement, all variables and given/known data A disk of mass 73 kg is held by a spring of unstretched length 88 cm and stiffness constant 430 N/cm, and rests on a frictionless table. It is then orbited in a circle at angular velocity .675 rad/s. By how much is the spring stretched? Answer in units of cm. 2. Relevant equations After a bit of derivation, I came up with x = r/((k/mw^2)-1). 3. The attempt at a solution r = 88 k = 430 m= 73 w = .675 It does not seem to work out. Am I being to complicated about it? Any help/hand-holding is greatly appreciated.