A thin uniform rod oflength $l$ and mass $m$ is swinging freely about a horizontal axis passing through its end . Its maximum angular speed is $\omega$. Its centre of mass rises to a maximum height of:

  • [AIEEE 2009]
  • A

    $\;\frac{1}{3}\frac{{{l^2}{\omega ^2}}}{g}$

  • B

    $\;\frac{1}{6}\;\frac{{l\omega }}{g}$

  • C

    $\;\frac{1}{2}\frac{{{l^2}{\omega ^2}}}{g}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;$

  • D

    $\;\frac{1}{6}\frac{{{l^2}{\omega ^2}}}{g}$

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