1. The problem statement, all variables and given/known data Evaluate the integral length of r(t)=[tihat +t^2jhat]dt from 0 to 2 2. Relevant equations 3. The attempt at a solution I think I should find the length of r(t) first which would be sqrt(t^2ihat+t^4jhat). However I'm not sure how I would integrate sqrt(t^2ihat+t^4jhat).