Define term escape velocity derive an expression for it
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Derive an expression for escape velocity. . Escape velocity is the minimum velocity with which a body must be projected vertically upward so that it may just escape the surface of the Earth. Expression for escape velocity: Let a body of mass m be escaped from the gravitational field of the earth.
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Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion.
The formula to find escape velocity is v = sqrt(2GM/r). M is the mass of the earth, G is the gravitational constant, r is the earths radius, and v is escape velocity.
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