Physics-
General
Easy

Question

For the velocity-time graph shown in figure below the distance covered by the body in last two seconds of its motion is what fraction of the total distance covered by it in all the seven seconds

  1. fraction numerator 1 over denominator 2 end fraction    
  2. fraction numerator 1 over denominator 4 end fraction    
  3. fraction numerator 1 over denominator 3 end fraction    
  4. fraction numerator 2 over denominator 3 end fraction    

The correct answer is: fraction numerator 1 over denominator 4 end fraction


    fraction numerator left parenthesis S right parenthesis subscript left parenthesis l a s t   2 s right parenthesis end subscript over denominator left parenthesis S right parenthesis subscript 7 s end subscript end fraction equals fraction numerator fraction numerator 1 over denominator 2 end fraction cross times 2 cross times 10 over denominator fraction numerator 1 over denominator 2 end fraction cross times 2 cross times 10 plus 2 cross times 10 plus fraction numerator 1 over denominator 2 end fraction cross times 2 cross times 10 end fraction equals fraction numerator 1 over denominator 4 end fraction

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