I have a central force motion with vector form r''=(k^2)*r, where k^2>0. It's trivial to solve for the vector r(t), but I'm having a little trouble solving for r(theta). I get a second order differential equation of the form r''=A/r^3+Br. Any tips on solving this?(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Quick mechanics question

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