ECZ 2016 · GCE Paper 1 — Travel Graphs
In the same journey (constant 30 m/suntil 80 s, then uniform deceleration to rest at 100 s), find the speed of the car at the ninety fifth second.
- A. 22.5 m/s
- B. 7.5 m/s
- C. 15 m/s
- D. 12 m/s
Verified working — step 1
At 95 s the car has 100 − 95 = 5 seconds of deceleration left. Losing speed at 1.5 m/s², it must still be doing 1.5 × 5 = …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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