Physics-
General
Easy

Question

A disc of mass M and radius R is rolling with angular speed omega on a horizontal plane as shown. The magnitude of angular momentum of the disc about the origin O is :-

  1. open parentheses fraction numerator 1 over denominator 2 end fraction close parentheses M R to the power of 2 end exponent omega    
  2. M R to the power of 2 end exponent omega    
  3. open parentheses fraction numerator 3 over denominator 2 end fraction close parentheses M R to the power of 2 end exponent omega    
  4. 2M R to the power of 2 end exponent omega    

The correct answer is: open parentheses fraction numerator 3 over denominator 2 end fraction close parentheses M R to the power of 2 end exponent omega

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