Originally Posted by

**Korgoth28** Hello! I'm new to this forum so bear with me as I figure latex out. I have a calc 3 test on Wednesday so be expecting a lot of questions from me :-)

My question is how do I find the arc length parametrization with the same orientation for $\displaystyle r(t) = \frac {u^3}{3}i + \frac{u^2}{2}j $?

t>= 0, t=0 is the reference point.

I got to $\displaystyle \int{\sqrt{t^4 + t^2}}$ but can't figure out how to integrate. Is there some calc 2 trick I'm forgetting?

Thanks in advance!