ECZ 2016 · O-Level Paper 1 — Travel Graphs
For the same motion (start speed v = 4⁄3 m/s, acceleration v⁄5), find the speed at t = 15 seconds.
- A. 4 m/s
- B. 16⁄3 m/s
- C. 20⁄3 m/s
- D. 3 m/s
Verified working — step 1
Speed at time t = v + at = v + (v⁄5)(15) = v + 3v = 4v. With 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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