need help with a formula

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need help with a formula

Postby Controversy » Fri Oct 14, 2005 11:34 am

Can someone explain to me what each of these symbols mean:

F = Gm1m2/r2

Postby shill » Fri Nov 04, 2005 6:51 am

F means the force of gravity. G means the gravitational constant. m1 and m2 are masses, and I think r² means the radius of the larger object multiplied by itself.
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Postby Guest » Fri Nov 04, 2005 6:55 am

r is actually the distance between the centers of mass of the two objects.

The difference is very important in case of attraction between earth and moon, but not so important for normal size objects on the surface of the earth.

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