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Question

An ant goes from P to Q on a circular path in 20 second Radius OP=10 m. What is the average speed and average velocity of it ?

  1. fraction numerator pi over denominator 6 end fraction text end text m s to the power of negative 1 end exponent comma 3 text end text m s to the power of negative 1 end exponent    
  2. fraction numerator pi over denominator 3 end fraction text end text m s to the power of negative 1 end exponent comma fraction numerator square root of 3 over denominator 2 end fraction text end text m s to the power of negative 1 end exponent    
  3. fraction numerator pi over denominator 3 end fraction text end text m s to the power of negative 1 end exponent comma square root of 3 text end text m s to the power of negative 1 end exponent    
  4. pi m s to the power of negative 1 end exponent comma square root of 6 text end text m s to the power of negative 1 end exponent    

The correct answer is: fraction numerator pi over denominator 3 end fraction text end text m s to the power of negative 1 end exponent comma fraction numerator square root of 3 over denominator 2 end fraction text end text m s to the power of negative 1 end exponent

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