A particle of mass $0.1 \,kg$ is subjected to a force which varies with distance as shown. If it starts its journey from rest at $x=0$, then its velocity at $x=12 \,m$ is .............. $m / s$

213130-q

  • A

    $0$

  • B

    $20 \sqrt{2}$

  • C

    $20 \sqrt{3}$

  • D

    $40$

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