Question

Define escape velocity. ​

Answer 1

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It is the minimum Velocity required for an object at earth's surface so that it just escape the Earth's gravitational field refered to as Escape Velocity.

Answer 2

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In physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body, that is, to achieve an infinite distance from it. Escape velocity is a function of the mass of the body and distance to the center of mass of the body.