A ball rolls without slipping.  The radius of gyration of the ball about an axis passing through its centre of mass $K$. If radius of the ball be $R$, then the fraction of total energy associated with its rotational energy will be 

  • [AIPMT 2003]
  • A

    $\frac{{{K^2}}}{{{R^2}}}$

  • B

    $\frac{{{K^2}}}{{{K^2} + {R^2}}}$

  • C

    $\frac{{{R^2}}}{{{K^2} + {R^2}}}$

  • D

    $\frac{{{K^2} + {R^2}}}{{{R^2}}}$

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