# Is more work required for this spring?

by endeavor
Tags: required, spring, work
 P: 223 Is more work required for this spring? no, the work is the difference between energies. $$EPE_i + W = EPE_f$$ $$W = EPE_f - EPE_i$$ $$W = 0.5kx_f^2 - 0.5kx_i^2$$