The work done by a force $\vec F\, = \,( - \,6{x^3}\,\hat i)N$ , in displacing a particle from $x = 4\,m$ to $x = -\,2\,m$ is .............. $\mathrm{J}$

  • A

    $360$

  • B

    $240$

  • C

    $-240$

  • D

    $-360$

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