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The potential energy of a particle of ma...

The potential energy of a particle of mass 1 kg moving along x-axis given by `U(x)=[(x^(2))/(2)-x]J`. If total mechanical speed (in m/s):-

A

`sqrt(5)`

B

`sqrt(7)`

C

`sqrt(3)`

D

None

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The correct Answer is:
A
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