1. The problem statement, all variables and given/known data Consider a particle of mass = 19.0 revolving around an axis with angular speed . The perpendicular distance from the particle to the axis is = 0.500 . 2. Relevant equations I=mr^2 K=0.5Iw^2 3. The attempt at a solution I=4.75 K=1796 which is 0.5*4.75*27.5^2 i know that w is right, this is one of those stupid mastering physics questions.