Any two masses in the universe attract each other with a force which is
i) directly proportional to the product of the masses,
ii) inversely proportional to the square of the distance between their centres.
F=GmM/r²
where G= universal gravitational constant.
m and M are the masses of two bodies.
r = distance between them.
* Larger the masses , greater is the force between them.
* Larger the distance , smaller is the force.
* If the distance is halved , force increases 4 times.
* If the distance is doubled, force becomes one-fourth.
* The force is not effected with any medium between the masses.
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