In Chapter 13, we explained that when a spring is stretched or compressed from its unstr...

In Chapter 13, we explained that when a spring is stretched or compressed from its unstretched position, elastic energy is stored in the spring and that energy will be released when the spring is allowed to return to its unstretched position. The elastic energy stored in a spring when stretched or compressed is determined from

Obtain expressions for the elastic energy of a linear spring described by F = kx and a hard spring whose behavior is described by F= kx².