A force F S is in the x-direction and has a magnitude that depends on x. Sketch a possible graph of F versus x such that the force does zero work on an object that moves from x1 to x2, even though the force magnitude is not zero at all x in this range.

Physics 211, Week 6 Notes PSU: Fall term Highlight = Key term Chapter 8: Conservative force: is a force with the property that the work done in moving a particle between two points is independent of the taken path. Meaning the work will be the same regardless of the distance. Nonconservative force: Force that does not store energy. Any friction type force is a nonconservative force. Potential Energy: energy associated with the configuration of a system of which a conservative force acts. Note that both gravitational and spring force are conservative (since otherwise we could not have spoken of gravitational potential energy and elastic potential energy). Gravitational Potential Energy PE grav mass