Question

what happens when a body leaves the earth's gravitational field

Answer 1

If a body leaves earth's gravitational field, it will not experience any gravitation(force of attraction). So, it will not remain in contact of the earth and float in the Galaxy independently.

Hope, you will like the answer

Answer 2

when a body leaves the gravitational field it loses the force of gravity and is said to have entered the anti gravitational field. it is now capable of moving wherever it wants and can even stay up above the lower surface without being pulled down. it requires a huge amount if force to overcome gravity.
Hope it helps u