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Understanding Newton's Law of Universal Gravitation

Learn about the fundamental principle of force, mass, and acceleration as described by Sir Isaac Newton's law of universal gravitation. Discover how objects in the universe exert gravitational forces on each other and explore the relationship between mass, distance, and acceleration in gravitational interactions.

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Understanding Newton's Law of Universal Gravitation

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  1. Force = Mass times Acceleration F = M x A

  2. Force of GravityF = G x M x m / R2Every object in the universe exerts a force on every other object m = Mass 2 M = Mass 1 R = distance between the two objects

  3. Force of the earth on the ball F = M(ball) x A(ball) = G x M(earth) x M(ball) / R2 A(ball) = G x M(earth) / R2 The acceleration of the ball doesn’t depend on the mass of the ball at all!!!

  4. Force of the ball on the earth F = M(earth) x A(earth) = GM(earth) x M(ball) / R2 A(earth) = G x M(ball) / R2 The mass of the ball is tiny compared to mass of the earth so we don’t notice the earth moving.

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