not sure what to do here..(adsbygoogle = window.adsbygoogle || []).push({});

Im being asked to compare the periods of 2 different satellites in orbit around a planet.

the first one is a circular orbit of radius = r

the second one orbits 1r to the left and 3r to the right around the planet.

I'll attempt to draw it here :tongue:

0 is the planet

(---------0---------)------------------------)

<---r----><---r----><---------2r------------>

I understand how the period works in the first circular orbit.. but not the second one. any ideas?

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# Homework Help: Kepler's third law

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