(a)[1]
Calculate the acceleration during the first 15 seconds.
(b)[4]
Determine the value of $T$.
Mathematics 0580 · IGCSE · Graphs in practical situations
Graphs in practical situations — practice question
The diagram presents the speed-time graph for a car during part of its journey. Speed (m/s) increases steadily from 0 to 30 in 15 seconds, and then stays at 30 m/s. The time axis is in seconds. Diagram marked NOT TO SCALE. The car begins at rest and speeds up at a constant rate for 15 seconds before settling at a steady speed of 30 m/s.