A particle is moving along a straight line parallel to $x$-axis with constant velocity. Find angular momentum about the origin in vector form

213172-q

  • A

    $+m v^2 b \hat{k}$

  • B

    $-m v b \hat{k}$

  • C

    $-2 m v b \hat{k}$

  • D

    $-m v b \hat{j}$

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