The equation for calculating kinetic energy is one-half times mass times velocity squared. A ball that weighs .3 kg and is moving at 10 m/s has the kinetic energy of 15 joules. Velocity has more of an impact on an object’s kinetic energy than mass. If the ball’s mass is doubled to .6 kg, then the kinetic energy is doubled. However, if you double the velocity of the ball to 20 m/s, then the ball’s kinetic energy quadruples.