$A$ solid sphere is rolling on a frictionless surface with a linear velocity $v \; m/s$,as shown in the figure. If the sphere climbs up to a height $h$,then the value of $v$ will be

  • A
    $ \ge \sqrt {\frac{{10}}{7}gh} $
  • B
    $ \ge \sqrt {2gh} $
  • C
    $ 2gh $
  • D
    $ \frac{{10}}{7}gh $

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