Here the line's steepness shows acceleration (speeding up or slowing down), not speed itself. Think of it like watching a speedometer needle over a journey, rather than watching the odometer.
Acceleration = gradient of the speed-time graph.
Distance travelled = area under the speed-time graph. For a graph that's a straight ramp from 0 to 20 m/s over 10 seconds, the distance is the area of the triangle: ½ × 10 × 20 = 100 m.
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A car accelerates from 0 to 15 m/s in 5 seconds. Find its acceleration.Using the area-under-graph rule, find the distance …
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