Derive expression for potential energy stored by stretched string

1.	Derive expression for potential energy stored by stretched string
Answer» The extension produced x is directly proportional to the force applied to extend or compress the spring. F=kx were k is spring constant. The work done to stretch or compress the spring is stored as its PE W= integral 0 to x (Fdx) =0 to x (kxdx) =1/2 kx^2

Discussion