Gravitational potential energy, the object (especially the celestial body) has the gravitational potential energy in the gravitational field. In physics, the infinity is often defined as the zero potential energy point of the gravitational potential energy. The gravitational potential energy expression is E=-GMm/r. Is a scalar, the unit is coke (J) G is the gravitational constant, M is the mass of the gravitational field object (central celestial body), m is the mass of the research object, and r is the distance between the centroids of the two. The well-known gravitational potential energy is the expression form of gravitational potential energy under special circumstances.
Gravitational potential energy = −(G×M) / x
G = 6.674 × 10-11 N(m/kg)2
M = quality
x = distance
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