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WAEC Further Mathematics 2012 Question 34

Question 34

Dynamics

The diagram above is a velocity time graph of a moving object. Calculate the distance travelled when the acceleration is zero.

Diagram for this question
  1. A.45cm
  2. B.90m
  3. C.150m
  4. D.240m
Show the answer and explanation

Answer: C (150m)

Explanation

Acceleration is zero on the flat part, from t = 3 to t = 8 s at 30 ms−1. Distance = 30 × 5 = 150 m.