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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

`(2GmM)/(3R)`

B

`(GmM)/(2R)`

C

`(GmM)/(3R)`

D

`(5GmM)/(6R)`

Text Solution

Verified by Experts

The correct Answer is:
D
Work done = Final total energy - Initial total energy
`=(-GMm)/(6R)-((-GMm)/(R ))`
`=(5GMm)/(6R)`
Thus, correct choice is (d).
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