Rotational Dynamics and Rolling Motion - Class XI

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Multiple Choice

A solid sphere of mass 0.5 kg and diameter 1 m rolls without sliding with a constant velocity of 5 m/s, the ratio of the rotational K.E. to the total kinetic energy of the sphere is :

  1. $\cfrac{7}{10}$
  2. $\cfrac{4}{9}$
  3. $\cfrac{2}{7}$
  4. $\cfrac{1}{2}$
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