Power, Work, and Energy

  • Oliver M. O’Reilly


We begin here by defining the mechanical power of a force, and from this the work done by the force during the motion of a particle. Next, the work-energy theorem = F · v is derived from the balance of linear momentum. It is then appropriate to discuss conservative forces, and we spend some added time discussing the potential energies of gravitational and spring forces. With these preliminaries aside, energy conservation is discussed. Finally, some examples are presented that show how all of these ideas are used.


Friction Force Energy Conservation Normal Force Gravitational Force Mechanical Power 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Oliver M. O’Reilly
    • 1
  1. 1.Department of Mechanical EngineeringUniversity of CaliforniaBerkeleyUSA

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