- #1

- 12

- 0

## Homework Statement

Why is potential energy variation between two points equals to the work of the opposite of conservative forces between these two points?

## Homework Equations

If we call these forces $$\vec F_ext^C$$

\begin{equation}

\Delta E_p=E_p(B)-E_p(A)=-\sum W_{A\rightarrow B}(\vec F_{ext}^C)

\end{equation}

## The Attempt at a Solution

I thought it was the opposite of the kinetic energy...