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Universal Law of Gravitation

PostPosted: December 14th, 2011, 9:10 am
by Jessica
The size of this force depends on:
1. the masses of the two objects
2. the distance between the objects

where G = 6.673 × 10–11

r = distance between the centers of two objects

this is the gravitational force between ANY two objects


F[sub]g[/sub] = ma[sub]g[/sub] is used only to find the gravitational force between the earth an object on the earth's surface specifically.

However you can use F[sub]G[/sub] to find the gravitational force of an object on the earth's surface. ← this will get you around 9.8 m/s²