ECZ 2022 · O-Level Paper 1 — Travel Graphs
The diagram below is the speed-time graph of an object. The object starts from rest and accelerates uniformly for 2 seconds until it reaches a speed of 10m/s. It then travels at this speed for 8 seconds and finally decelerates to rest after 5 seconds. Find the (a) retardation of the object in the last 5 seconds.
- A. 10m.s2
- B. 12m.s2
- C. 2m.s2
- D. 5m.s2
Verified working — step 1
Retardation = decrease in speedtimeThe 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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