WAEC Physics 2021 Objective — Question 17

Question 17 of 50 from the West African Examinations Council (WAEC) Physics 2021 Objective paper, with the correct answer and a full explanation.

17. The diagram above illustrates the velocity-time graph of a body. Calculate the distance covered by the body during the motion.

• A. 15 m
• B. 84 m
• C. 72 mCorrect
• D. 48 m

Explanation

Distance = area under the graph = rectangle(0-4s)+trapezium(4-12s) = (4×4) + ½(4+10)×8 = 16+56 = 72 m.

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