(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

How much energy is required to launch a 200 kg satellite from the surface of the earth into a circular orbit with radius 8.0 * 10^6 m?

G=6.67*10^-11

2. Relevant equations

Ep= -GMm/r

3. The attempt at a solution

I calculated the gravitational potential energy of the object on the earth, then I calculated the gravitational potential energy of the object in the circualr orbit and then I subtracted the two and apparently thats not the correct way to tackle the problem.

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# Homework Help: Gravitational Energy Q

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