If a force F acts on an object and it moves a distance of s in the direction of the force, the work done on the object by the force W = Fs.If a graph of force against distance is plotted, the area under the graph is the work done.
Hooke's LawTo stretch a spring to extension ΔLwork done = ½FΔL
Work done = area under the graph
Hooke's LawTo stretch a spring to extension ΔLwork done = ½FΔLWork done = area under the graph