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The potential energy of a 4kg particle f...

The potential energy of a 4kg particle free to move along the x axis is given by `U(x) =x^3/3 -5x^2/2+6x+3` Total mechanica; energy of the particle is 17j . Then maximum kinetic energy will be
a)10J
b)2J
c)9.5J
d)0.5J

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