A small particle of mass $m$ is projected at an angle $\theta $ with the $x-$ axis with an initial velocity $v_0$ in the $x-y$ plane as shown in the figure. At a time $t < \frac{{{v_0}\,\sin \,\theta }}{g}$, the angular momentum of the particle is

806-657

  • [AIEEE 2010]
  • A

    $ - mg\,{v_0}{t^2}\,\cos \,\theta\, \hat j$

  • B

    $ mg\,{v_0}t\,\cos \,\theta\, \hat k$

  • C

    $ - \frac{1}{2}\,mg\,{v_0}{t^2}\,\cos \,\theta \,\hat k$

  • D

    $\frac{1}{2}\,mg\,{v_0}{t^2}\,\cos \,\theta \,\hat i$

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