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The figure below is a velocity time graph for a car.
velocity time graph for a car

  1. Find the total distance traveled by the car. 
  2. Calculate the deceleration of the car. 

1 Answer

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  1. Area under the curve = Distance
    (½ × 4 × 80) + (16 × 80) + (½ × 4 × 80)
    =160 + 1280 + 160
    =1600m
  2. Deceleration = change in speed
                             Time taken
                      = 80/4
                      =20m/s2 
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