Mathematics 0580 · IGCSE · Graphs in practical situations

Graphs in practical situations — practice question

The diagram gives a speed-time graph for 16 seconds of a car journey. The vertical axis is Speed (m/s), while the horizontal axis is Time (seconds). From 0 to 12 seconds the speed stays constant at 10 m/s. From 12 to 16 seconds the speed drops linearly to 0. The diagram is marked NOT TO SCALE.
(a)[1]

Find the car’s deceleration in the last 4 seconds.

(b)[2]

Find the total distance covered in the 16 seconds.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$2.5\text{ m s}^{-2}$” …

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