# Newton's Law of Universal Gravitation

*Every particle in the Universe attracts every other with a force which is proportional to the product of their masses and inversely proportional to the square of their seperation.*

- The gravitational force of attraction between two bodies,
- Where
*F*= gravitational force of attraction [N]*G*= universal gravitational constant = 6.67x10^{-11}Nm^{2}kg^{-2}*m*_{1},*m*_{2}= mass of bodies [kg]*r*= distance between bodies [m]

**See also: **Escape Velocity, Gravitational Constant, Gravitational Potential, Keplers Laws, Newton, Isaac, Standard Acceleration due to Gravity, Two Body Problem.

**Subjects: ** Physics