Answers

2015-09-09T21:26:38+05:30
It is basically the attraction of an object towards something( Between two object).
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2015-09-09T21:27:39+05:30
Every object in this universe attracts other object by some force which depends directly upon the product of the masses of the two objects and inversely on the square of the distance between those two objects. This force is known as the force of gravitation.
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Because of gravity, if you drop something, it falls down, instead of up