# Derive Kepler's Third Law of Planetary Motion from Newton's Law of Universal Gravitation?

Universal Law of Gravitation is Fg = (Gm1m2)/r^2

Please show me step by step on how to derive Kepler's Third Law of Planetary Motion (T^2 = Kr^3).

You'll probably also have to use other equations along with the Universal Law of Gravitation.

Please show me step by step on how to derive Kepler's Third Law of Planetary Motion (T^2 = Kr^3).

You'll probably also have to use other equations along with the Universal Law of Gravitation.

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