Wile E. Coyote is setting a 2000 kg boulder marked with the Acme insignia at the edge of a 500m cliff in a scheme to catch the roadrunner. As usual, he ends up at the bottom of the cliff and the boulder falls on top of him. What is the potential energy of the boulder prior to falling off of the cliff?
The boulder's potential energy before falling is 9.81 x 10^8 Joules (or 981 MJ), calculated using the formula PE = mgh, where m is the mass (2000 kg), g is the acceleration due to gravity (9.81 m/s^2), and h is the height (500 m).