Q.

Work done by the conservative force on a system is equal to

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a

the change in potential energy of the system

b

the change in total mechanical energy of the system

c

none of the above

d

the change in kinetic energy of the system

answer is B.

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Detailed Solution

We know that dU = -dW

Where dU = Change in potential energy

and dW = 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

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