The position vector of a particle is determined by the expression $\vec r = 3{t^2}\hat i + 4{t^2}\hat j + 7\hat k$ The distance traversed in first $10 \,sec$ is........ $m$

  • A

    $500$

  • B

    $300$

  • C

    $150$

  • D

    $100$

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