11-2 Work done by a constant force 11-3 Power 1. Definition of work The work W done by a constant force f that moves a body through a displacement s in the directions of the force as the product of the magnitudes of the force and the displacement W=FS (Here S/F)(11-1) ch 11 Energy I: Work and kinetic energyCh.11 Energy I: Work and kinetic energy 11-2 Work done by a constant force 1.Definition of ‘Work’ The work W done by a constant force that moves a body through a displacement in the directions of the force as the product of the magnitudes of the force and the displacement: (11-1) F  s  W = Fs (Here ) s//F   11-3 Power