- #1

Weather Freak

- 40

- 0

## Homework Statement

Find the work done by the force field F(x,y) = (x+2y^2)j as an object moves once counterclockwise about the circle (x-2^2+y^2=1 by first evaluating the integral directly then use Green's Theorem and evaluate the double integral.

## Homework Equations

W = F*D*cos(theta)

## The Attempt at a Solution

My problem is not in getting the answer. I haven't gotten the final answer yet, but that's not the issue at hand.

My Calc teacher told me that it is NOT zero, and I am wondering why. If you move around in a circle, there is no displacement, so therefore, work should be equal to zero. So what is it that makes this case different from everything I did in Physics class?