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Work done by a conservative force in bringing a body from infinity to A is 60 J and to B is 20J. What is the difference in potential energy between point A and B, i.e. `U_(B)-U_(A)`. |
Answer» Correct Answer - D `U_(A) =-60J` `U_(B) =-20J` ` :. U_(B)-U_(A) =40J` |
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