ECZ 2014 · O-Level Paper 1 — Travel Graphs
The diagram is the speed–time graph of a bus which leaves a bus stop and accelerates uniformly for 10 seconds over a distance of 100 m, maintains that speed for 30 seconds and then retards uniformly to rest at the next bus stop. Find the value of V.
- A. 20 m/s
- B. 10 m/s
- C. 40 m/s
- D. 200 m/s
Verified working — step 1
The distance in the first 10 s is the area of the triangle: 100 = ½ × 10 × V = 5V, so V = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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