The displacement $x$ (in $m$) of a particle of mass $m$ (in $kg$) moving in one dimension under the action of a force,is related to time $t$ (in $s$) by $t = \sqrt{x} + 3$. The displacement of the particle when its velocity is zero,will be

  • A
    zero
  • B
    $6 \ m$
  • C
    $2 \ m$
  • D
    $4 \ m$

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