Recent content by kpengin

  1. K

    Moment of Inertia and kinetic energy question

    Homework Statement The flywheel of a gasoline engine is required to give up 550 of kinetic energy while its angular speed decreases from 720 to 400 . What moment of inertia is required? Homework Equations K=(1/2)Iw^2 The Attempt at a Solution K=550J I'm not sure how to get the...