The potential energy of a body of mass $m$ is:
                      $U = ax + by$
Where $x$ and $y$ are position co-ordinates of the particle. The acceleration of the particle is

  • A

    $\frac{{{{({a^2} + {b^2})}^{1/2}}}}{m}$

  • B

    $\frac{{{a^2} + {b^2}}}{m}$

  • C

    $\frac{{{{(a + b)}^{1/2}}}}{m}$

  • D

    $\frac{{a + b}}{m}$

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