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Question 1
4 marksBelow is the sketch of a speed-time graph for a car moving on a straight road for 12 seconds. The car starts at a speed of 4 ms-1 and increases its speed linearly to 14 ms-1 over the first 5 seconds, before maintained this speed for the remainder of the journey.
Revision notes for OCR GCSE Maths Velocity Time Graphs. Open the guide for explanations and worked examples. Written against the OCR GCSE Maths (J560) specification, so the content matches what's examinable rather than general Maths background.
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An object's velocity increases uniformly from 4Â m/s4\text{ m/s}4Â m/s to 16Â m/s16\text{ m/s}16Â m/s in 666 seconds. What is its acceleration?