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A body is orbiting very close to the earth's surface with kinetic energy . The energy required to completely escape from it is
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For a satellite in a closed orbit, we know that
Hence, in order to make the body escape, we should make its total energy , which can be achieved by providing additional energy equal to the kinetic energy of the body itself as from the abiove relation we can clearly see that .
So, the energy given to the body so as to completely escape from its orbit is equal to its kinetic energy .
Hence, in order to make the body escape, we should make its total energy , which can be achieved by providing additional energy equal to the kinetic energy of the body itself as from the abiove relation we can clearly see that .
So, the energy given to the body so as to completely escape from its orbit is equal to its kinetic energy .
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