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athe potential energy of a particle of m...

athe potential energy of a particle of mass `2 kg` moving along the x-axis is given by `U(x) = 4x^2 - 2x^3 `( where U is in joules and x is in meters). The kinetic energy of the particle is maximum at

A

`x = 0`

B

`x = 1 m`

C

`x = 4/3 m`

D

`x = 2 m`

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