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conservative system is a system in which work done by a force is
1. Independent of path followed.
2. Equal to the difference between the final and initial values of an energy function.
3. Completely reversible.
The two most notable conservative systems are gravitational and electric fields.
Three-Dimensional Conservative Systems:
In three dimensions the conservative force contains three components and thus the work done is given as follows:
where change in potential energy is given as:
ΔU = Uf -Ui
Work Done on a System by External Forces:
When a force is applied on a physical system so that a displacement takes place then the work done by the force can be written as:
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