What is escape speed ? Derive expression for it.
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In general escape, speed is achieved when the object moves with a velocity at which the arithmetic sum of the object's gravitational potential energy and its Kinetic energy equates to zero.
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Explanation:
ve is the escape speed. G is the universal gravitational constant (G≅6.67×10-11 m3kg-1s-2) M is the mass of the massive body(the body from which the object is to be escaped from) r is the distance from the centre of the massive body to the object.
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