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Question

A body is moving in a straight line a shown in velocity-time graph. The displacement and distance travelled by in 8s are respectively

  1. 12 m, 20 m    
  2. 20m, 12 m    
  3. 12 m, 12 m    
  4. 20 m, 20 m    

The correct answer is: 12 m, 20 m


    Displacement equals open parentheses 2 cross times 4 minus 2 cross times 2 plus 2 cross times 4 close parentheses equals12m
    equals 2 cross times 4 plus 2 cross times 2 plus 2 cross times 4=20m

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