A particle of mass $= 5\ units$ is moving with a uniform speed $V = 3 \sqrt 2\ units$ in the $XOY$ Plane along the line $Y = X+4 $ . The magnitude of the angular momentum of the particle about the origin is ...... $unit.$

  • A

    $60$

  • B

    $40 \sqrt 2$

  • C

    $0$

  • D

    $7.5$

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