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Newtons law of gravitation states that the mutual gravitational attraction between an object and the earth increases with the mass of that object.

2007-04-13 06:22:54 · 5 answers · asked by Anonymous in Science & Mathematics Physics

5 answers

The acceleration of an object does not change regardless of the mass of that object. However the force exerted does.

F = ma
a = F/m

the force on the object is larger, but it's mass is larger too.
F/m is a constant and equals the acceleration of gravity.

2007-04-13 06:27:55 · answer #1 · answered by DanE 7 · 1 1

Acceleration due to gravity is dependent on the masses of both bodies (the falling body and the earth). The mass of the earth is so much greater than the mass of any falling body (with respect to the earth) that the difference is practically non-existent.

2007-04-13 13:31:40 · answer #2 · answered by anklegno 2 · 1 1

Well if you dropped an *Earth-sized* mass toward the Earth, then F = G*M*m/r^2 applies. Otherwise it doesn't make much difference if the mass is 1000 kg or 1g, the mass of the earth is still much much greater than the object, and the approximation a = 9.8 m/s^2 applies (to several decimal places).

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2007-04-13 13:29:32 · answer #3 · answered by tlbs101 7 · 0 1

Inertia. An object twice as heavy has twice the gravitational pull, but there's twice as much object to get moving. It balances out. If you took a million BBs and put them in a jug you wouldn't expect them to fall faster than one BB just because they're closer together, would you? So the 100 pound jug wouldn't fall any faster than the .001 ounce BB.

2007-04-13 20:28:01 · answer #4 · answered by Nomadd 7 · 0 0

The acceleration is caused by the mass of the Earth... which does not change.

2007-04-13 13:25:54 · answer #5 · answered by Anonymous · 0 2

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