(adsbygoogle = window.adsbygoogle || []).push({}); Please help!! Motion problem

Suppose one found the equation of a radial vector with respect to time.

Then if one were to differentiate it with respct to time and find the value of r'(t=0)

suppose that was value was positive then the velocity is positive

if negaitve then the velocity is negative

but what about the subsequent motion? keep in mind that the r(phi) where phi si the polar angle is given by an exp function.

I understand that if r'(0) > 0 then it will proceed with positive displacement

but hwat about the negative??

this is a follow on from this question https://www.physicsforums.com/showthread.php?t=106913

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# Homework Help: Please help Motion problem

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