ECZ 2021 · O-Level Paper 1 — Travel Graphs
The diagram below shows the speed-time graph of a moving object. (b) Given that the object decelerates at 2m/s2, find the value of t,
- A. 17 seconds
- B. 22 seconds
- C. 20 seconds
- D. 12 seconds
Verified working — step 1
t marks the END of the journey, so find how long the slow-down takes and add it to when the slow-down starts.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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