Plese i in this exam,its a challenge.

[shishi4]

Homework Statement

i need help in solving this,coz i have an exam tomorrow,please help me,i search everywhere and i didnt know how to do it

Homework Equations

find the curvature of the fowloing curve
r(t)= t i +t^3/2 j , t>0

The Attempt at a Solution

 

[CompuChip]

Welcome to PF shishi.
I assume that you have learned how to calculate the curvature of a curve. If you are given a parametrization r(t), then what is the formula for the curvature?