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Newton’s Law of GravitationComments
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Newton’s Law of Gravitation

Every object in the universe exerts a gravitational pull on every other object. Magnitude of gravitational force is ∝ to the product of the objects' masses. Magnitude of graviational force is inversely ∝ to the square of the distance between them. Constant of proportionality is defined as G (Newton's universal gravitational constant).

Fgrav = G (Mm/r²)