Just a question about gravitation equations:(adsbygoogle = window.adsbygoogle || []).push({});

Neglecting Earth's rotation, show that the energy needed to launch a satellite of mass m into circular orbit at altitude h is equal to:

[tex](\frac {GMm}{R})(\frac{R+2h}{2(R+h)})[/tex]

Where R = the radius of the Earth and M = the mass of the Earth.

I've tried subbing in r=h+R and it hasn't given me much help.

Any help would be truly appreciated! Thanks all.

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# Homework Help: Gravitation and Circular Orbits

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