2592

Physics Gravitation Level: High School

Gravitational Potential Energy

Energy is required to move a 422 kg mass from the Earth’s surface to an altitude h = 1.65 RE above the surface . The acceleration of gravity is 9.8 m/s^2 . The earth has the radius RE = 6370000 m . What amount of energy is required to accomplish this move ? (Hint : G and ME can be eliminated in favor of parameter of the gravitational acceleration at the surface of the earth ; ie, g = 9.8 m/s^2 .The product GME may be obtained from R^2E , the gravitational acceleration of the earth’s surface .