MCQ
The potential energy of a system increases if work is done
- ✓by the system against a conservative force.
- BUpon the system by a conservative force.
- CUpon the system by a nonconservative force.
- Dby the system against a nonconservative force
✓
Answer
Correct option: A.
by the system against a conservative force.
a
Relation between conservative force and potential energy is,
Relation between conservative force and potential energy is,
$F _{\text {cons }}=- dU / dx$
$F _{\text {cons }} \cdot dx =- dU$
$- W =-\int F _{\text {cons }} \cdot dx =\Delta U$
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