Find the total kinetic energy of a rolling bowling ball that has a mass of 11 kg and a radius of 0.17 m moving at 18 m/s. Recall: when rolling, the ball is both moving forward and rotating, so the total KE = the linear KE + the rotational KE v = r ISphere = 2/5 MR2 ICylinder = 1/2 MR2 IRing = MR2 IStick thru center = 1/12 ML2 IStick thru end = 1/3 ML2