About: Work Energy Theorem

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According to this theorem, the work done by all the forces (conservative or non-conservative, external or internal) acting on a particle or an object is equal to the change in kinetic energy of it. Let , ... be the individual forces acting on a particle. The resultant force is and the work done by the resultant force is: where is the work done on the particle by and so on. Thus, work energy theorem can also be written as: Work done by the resultant force is equal to the sum of the work done by the individual forces. There are a few points worth noting:

Attributes	Values
rdfs:label	Work Energy Theorem
rdfs:comment	According to this theorem, the work done by all the forces (conservative or non-conservative, external or internal) acting on a particle or an object is equal to the change in kinetic energy of it. Let , ... be the individual forces acting on a particle. The resultant force is and the work done by the resultant force is: where is the work done on the particle by and so on. Thus, work energy theorem can also be written as: Work done by the resultant force is equal to the sum of the work done by the individual forces. There are a few points worth noting:
dcterms:subject	Mechanics
dbkwik:science/pro...iPageUsesTemplate	dbkwik:resource/sx3qui8bZ6-fsx4Rjj9olQ==
abstract	According to this theorem, the work done by all the forces (conservative or non-conservative, external or internal) acting on a particle or an object is equal to the change in kinetic energy of it. Let , ... be the individual forces acting on a particle. The resultant force is and the work done by the resultant force is: where is the work done on the particle by and so on. Thus, work energy theorem can also be written as: Work done by the resultant force is equal to the sum of the work done by the individual forces. There are a few points worth noting: 1. * ) If Wnet is positive then Kf - Ki = +ve (positive), i.e, Kf > Ki or kinetic energy will increase and vice versa. 2. * ) This theorem can be applied to non-inertial frames also. In a non-inertial fram it can be written as: Work done by all the forces (including pseudo forces) = change in kinetic energy in non-inertial frame.

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