The weight of a body is the force with which it is attracted toward the centre of the earth. When a body is stationary with respect to the earth, it’s weight equals to the gravity. This weight of the body is known as its static or true weight.
At one particular position, the two gravitational pulls may be equal and opposite and the net pool on the body becomes zero. This is zero gravity region or the pull point and the body is said to be weightless.
This can be observed in the following situations.
(I) When objects fall freely under gravity.
(II) When a satellite revolves in its orbit around the earth.
(II) When bodies are at null points in outer space.