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Asseration : If work by done conservative forces is positive, kinetic energy will increase.
Reason : Because potential energy will decrease.
A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true, but the Reason is false
D. If Assertion is false but the Reason is true.

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Correct Answer - D
In the figure, work done by conservative force (gravity force) is positive, potential enerfy is decresing, But kinetic energy may increase, decrease or remain constant, depending on the value of `F`.
image

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