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Question

A vertical loop of radius R and mass rolls without slipping on horizontal circular tracks of radius R with velocity v as shown. The total kinetic energy of the loop is –

  1. fraction numerator 3 over denominator 2 end fractionMv2  
  2. fraction numerator 1 over denominator 2 end fractionMv2  
  3. Mv2  
  4. fraction numerator 1 over denominator 4 end fractionMv2  

The correct answer is: fraction numerator 3 over denominator 2 end fractionMv2

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