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 open parentheses S close parentheses subscript open parentheses l a s t blank 2 s close parentheses end subscript over denominator open parentheses S close parentheses subscript 7 s end subscript end fraction equals fraction numerator table row cell fraction numerator 1 over denominator 2 end fraction cross times 2 cross times 10 end cell row cell end cell end table over denominator table row cell 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 cell row cell end cell row cell end cell end table end fraction equals fraction numerator 1 over denominator 4 end fraction

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