Biermann Dirk

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Newton’s Law Of Universal Gravitation.

Newton’s Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

The universal gravitation equation thus takes the form

in picture

Universal Gravitation Equation

Newton’s conclusion about the magnitude of gravitational forces is summarized symbolically as

F=Gxm1m2/r^2

where,

- F is the gravitational force between bodies

- m1 is the mass of one of the objects

- m2 is the mass of the second object

- r is the distance between the centres of two objects

- G is the universal gravitational constant

The constant proportionality (G) in the above equation is known as the universal gravitation constant. The precise value of G was experimentally determined by Henry Cavendish in the century after Newton’s death. The value of G is found to be G = 6.673 x 10-11 N m2/kg2.

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