Physics-
General
Easy

Question

A wheel completes 2000 revolutions to cover the 9.5 blank k m. distance. Then the diameter of the wheel is

  1. 1.5 blank m  
  2. 1.5 blank c m  
  3. 7.5 blank c m  
  4. 7.5 blank m  

The correct answer is: 1.5 blank m


    Distance covered in ´ n ´ revolution = n 2 pi r equals n pi D
    rightwards double arrow 2000 pi D equals 9500 left square bracket A s blank n equals 200 comma d i s t a n c e equals 9500 blank m right square bracket
    rightwards double arrow D equals fraction numerator 9500 over denominator 2000 cross times pi end fraction equals 1.5 blank m

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