For a rigid body in rotational motion,if the linear velocity of a particle at a distance of $2 \ cm$ from the fixed axis of rotation is $10 \ cm \ s^{-1}$,what is the angular velocity of a particle at a distance of $4 \ cm$ from the axis of rotation?

  • A
    $2.5 \ rad \ s^{-1}$
  • B
    $5 \ rad \ s^{-1}$
  • C
    $10 \ rad \ s^{-1}$
  • D
    $20 \ rad \ s^{-1}$

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