Mathematics 0580 · IGCSE · Graphs in practical situations

Graphs in practical situations — practice question

Petra sets off in her car and starts from rest. She speeds up at a constant rate of $0.4\ \text{m s}^{-2}$ for 30 seconds. After that, she continues moving at a steady speed for 40 seconds.
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Using the grid, sketch the speed-time graph for the first 70 seconds of Petra’s journey.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Straight diagonal line from $(0,0)$ to $(30,12)$” …

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