Physics-
General
Easy

Question

A train moves from one station to another in 2 hours time. Its speed-time graph during this motion is shown in the figure. The maximum acceleration during the journey is

  1. 140 km h–2    
  2. 160 km h–2    
  3. 100 km h–2    
  4. 120 km h–2    

The correct answer is: 160 km h–2


    Maximum acceleration will be represented by CD part of the graph
    Accelerationequals fraction numerator d v over denominator d t end fraction equals fraction numerator left parenthesis 60 minus 20 right parenthesis over denominator 0.25 end fraction equals 160   k m divided by h to the power of 2 end exponent

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