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A conservative force in a region is give...

A conservative force in a region is given by `vec F=(A/x^3)hati` .An expression for the potential energy in the region, assuming the potential at infinity to be zero, is

A

`A/(2x)`

B

`A/(2x^2)`

C

`A/(2x^3)`

D

`(2x^2)/A`

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