What is the minimum energy required to l...

What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R?

A

`(5GmM)/(6R)`

B

`(2GmM)/(3R)`

C

`(GmM)/(2R)`

D

`(GmM)/(2R)`

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