ECZ 2019 · GCE Paper 1 — Travel Graphs
In the same journey (rest → 10 m/sin 2 s; constant for 6 s; accelerating from 8 s to 13 s up to V m/s; then retarding to rest over the last 8 seconds), find the value of V if the retardation in the last 8 seconds is 3 m/s².
- A. 30 m/s
- B. 18 m/s
- C. 11 m/s
- D. 24 m/s
Verified working — step 1
In the last phase the object loses speed at 3 m/s² for 8 seconds, ending at rest. So it must start that phase at V = 3 × 8 = …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.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question