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## Homework Statement

I am modelling the motion of a space probe and have some problems with obtaining velocity in terms of time v(t). I am given Q(z)=v

^{2}(z). Q(z) is a solution to ODE which I have solved with z being the independent variable.

## Homework Equations

Q(z)= something really nasty, I am keeping it in maple

v(z)=[tex]\sqrt{Q(z)}[/tex] and everything else I can get by differentiating/integrating those two

## The Attempt at a Solution

I have tried [tex]\int v(z) dz[/tex] between 0 and t (the range of t and z is only positive) but the result is nonsensical and maple will not compute it

I have been messing around with maple for past couple of hours to no avail, so I might not be thinking straight and missing something idiotic...