Home > Courses > 1P21_Sternin > RotationalMotion Rotational Work and Energy Kinetic energy of rotation with angular velocity $\omega$ $K_{\rm rot} = {1\over2}\>{I\omega^2}$ Conservation of total mechanical energy $\Delta \left( U + K_{\rm tr} + K_{\rm rot} \right) = W_{\rm non-c.f.}$