I've been trying to derive the Roche Limit and have been succesful for the most part but out of curiousity i was wondering how the tidal force equation was derived to be: -2GMmr/d^3 ??(adsbygoogle = window.adsbygoogle || []).push({});

Also on a related note i always get the constant at the front of the Roche Limit equation to be the cube root of two when apparently i should be getting two times this = 2.52, How is this constant found?

(i gather Roche gets 2.44 due to spheroid deformation).

Can anyone help with either of these problems.

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# How do you derive the tidal force equation?

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