The minimum velocity required to project a body vertically upward from the surface of earth, so that it never returns to the surface of earth is called escape velocity.
1.Escape velocity on the surface on earth
is 11.2 km/s.
2.Escape velocity on the surface on moon
is 2.3 km/s.
3.Escape velocity is independent of mass
of the body.
4.Escape velocity depend only upon the
mass and size of the planet.
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