ECZ 2016 · GCE Paper 1 — Travel Graphs
In the same journey (30 m/sconstant speed until t = 80 s, rest at 100 s), calculate the retardation in the last part of the journey.
- A. 3 m/s²
- B. 0.5 m/s²
- C. 1.5 m/s²
- D. 2 m/s²
Verified working — step 1
The car loses 30 m/sover the last 100 − 80 = 20 seconds: retardation = 3020= …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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