ECZ 2018 · O-Level Paper 1 — Travel Graphs

The diagram below is a speed-time graph of a particle which accelerates uniformly from rest for 12 seconds until it reaches a speed of 24 m/s. It moves at a constant speed for a further 12 seconds before it accelerates uniformly for another 6 seconds to a speed of V m/s. (b) Find the distance which the particle covered in the first 24 seconds.

Verified working — step 1

Distance in first 24 seconds = area under the graph.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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