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Question

A particle moves along the sides AB, BC, CD of a square of side 25 m with a velocity of 15m s to the power of negative 1 end exponent. Its average velocity is

  1. 15m s to the power of negative 1 end exponent    
  2. 10m s to the power of negative 1 end exponent    
  3. 7.5m s to the power of negative 1 end exponent    
  4. 5m s to the power of negative 1 end exponent    

The correct answer is: 5m s to the power of negative 1 end exponent


    Average velocity =fraction numerator text Totaldisplacement end text over denominator text Timetaken end text end fraction equals fraction numerator 25 over denominator 75 divided by 15 end fraction=5m/s

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