ECZ 2019 · GCE Paper 1 — Travel Graphs
The diagram below shows a speed time graph of an object. It starts from rest and accelerates uniformly for 2 seconds until it reaches a speed of 10 m/s. It moves at this constant speed for 6 seconds then accelerates until it reaches a speed of V m/s after 5 seconds. Finally, it retards for the next 8 seconds until it comes to a halt. Calculate the acceleration during the first 2 seconds.
- A. 10 m/s2
- B. 2 m/s2
- C. 5 m/s2
- D. 20 m/s2
Verified working — step 1
On a speed-time graph, acceleration is the gradient - the speed gained each second.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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