#conservative forces

Using algebraic substitution and rearrangement to derive the Work-Energy Theorem.

Introduction If we have a pair of equations that share a common variable, we can solve for that variable in one equation and plug it into the other. For example, if we have the equation of the circle (x2+y2=r2) and the equation of the line (y=mx+b), we can replace the letter y in the circle equation with mx+b. The equation of x2+y2=r2 and the equation of x2+(mx+b)2=r2 are mathematically…