Answer:
The greater the combined masses and the closer they are to one another the stronger the force of gravity would be.
Explanation:
Why we don't see that a falling apple is attracting the earth towards itself is because the greater the combined masses and the closer they are to one another the stronger the force of gravity would be.
The force of gravity react on either one or two object to pull them closer or together, and this is simply measured by the masses of the objects and the gap between them.
Due to Newton's third law of motion which states that when an object applies force on another object, the other object applies the same force in opposite direction on the first object, His third law in a simplest form states that for every action which can also be refer to as force in nature there is an equal and opposite reaction. Simply means, if object A apply a force on object B, then object B also apply an equal and opposite force on object A.
