Q.
Work done by a conservative force on a system is equal to
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a
The change in kinetic energy of the system
b
The change in potential energy of the system
c
The change in total mechanical energy of the system
d
None of the above
answer is D.
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Detailed Solution
We know that dU = -dW where dU is the change in potential energyand dW is the work done by conservative forces Hence, work done by conservative forces on a system is equal to the negative of the change in potential energy.