Physics-
General
Easy

Question

The linear acceleration of a particle which completes a revolution in circle of radius 10cm with constant speed in 4 seconds is.....cm/s2</su

  1. p2    
  2. 25p2    
  3. 2.05p2    
  4. 2.5p2    

The correct answer is: 2.5p2


    a subscript T end subscript equals 0 semicolon a equals a subscript N end subscript equals r open parentheses fraction numerator 2 pi over denominator T end fraction close parentheses to the power of 2 end exponent equals fraction numerator 10 cross times 4 pi to the power of 2 end exponent over denominator 16 end fraction equals fraction numerator 10 over denominator 4 end fraction pi to the power of 2 end exponent
    equals 2.5 pi to the power of 2 end exponent c m divided by s to the power of 2 end exponent

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