The equation I'm trying to solve is (r^3) * r ''' - G*m*r' = 0(adsbygoogle = window.adsbygoogle || []).push({});

the independant variable is t.

I'm not far along in DE's yet to know how to go about this but I was bored and trying to derive something and came across it. Thanks for the help

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# Help with 3rd Order DE (r^3)*r''' - kr' = 0

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