SN_Sec_14-5_14-6 - POTENTIAL ENERGY AND CONSERVATION OF...

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POTENTIAL ENERGY AND CONSERVATION OF ENERGY (Sections 14.5-14.6) Today’s Objectives: Students will be able to: a) Understand the concept of conservative forces and determine the potential energy of such forces. b) Apply the principle of conservation of energy.
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CONSERVATIVE FORCE A force F is said to be conservative if the work done is independent of the path followed by the force acting on a particle as it moves from A to B. In other words, the work done by the force F in a closed path ( i.e., from A to B and then back to A) equals zero. This means the work is conserved. r F 0 = · d x y z A B F A conservative force depends only on the position of the particle, and is independent of its velocity or acceleration.
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CONSERVATIVE FORCE (continued) A more rigorous definition of a conservative force makes use of a potential function (V) and partial differential calculus, as explained in the texts. However, even without the use of the these mathematical relationships, much can be understood and accomplished. The “conservative” potential energy of a particle/system is
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This note was uploaded on 04/25/2009 for the course 222 AND 34 dynamics a taught by Professor Ibrahim during the Spring '09 term at American University of Sharjah.

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SN_Sec_14-5_14-6 - POTENTIAL ENERGY AND CONSERVATION OF...

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