Gravitational Potential Energy - Georgia State University
http://hyperphysics.phy-astr.gsu.edu/hbase/gpot.html
Gravitational Potential Energy. The general expression for gravitational potential energy arises from the law of gravity and is equal to the work done against gravity to bring a mass to a given point in space. Because of the inverse square nature of the gravity force, the force approaches zero for large distances, and it makes sense to choose the zero of gravitational …
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