← 4.2 Linear motion with constant acceleration
Using s = ((u + v)/2) × t
General Science · Grade 10 · about 40 minutes
When acceleration is unknown, displacement is the average of the two speeds multiplied by time — the same idea as the area of a trapezium on a v–t graph.
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Other lessons in this sub-strand
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- Speed, units and average speed
- Velocity and relative speed
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- Using s = ut + ½at²
- Using v² = u² + 2as
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- Distance–time graphs
- Velocity–time graphs: gradient and area
- Measuring acceleration on a ramp
- Constant acceleration around us
- Upward throws and the symmetric fall
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