The potential energy of a ball at the top of a hill is 15,000 J. Two-thirds of the way down the hill, the potential energy is 5476 J. What is the ball's kinetic energy at that point?

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603