A speed-time graph plots speed on the vertical axis (y-axis) and time on the horizontal axis (x-axis). The gradient (slope) of the graph represents acceleration. A positive gradient means acceleration (speed increasing). A zero gradient means constant speed (zero acceleration). A negative gradient means deceleration or retardation (speed decreasing). The area under the graph represents the distance traveled.

Solved: Speed time graph | Physics

The gradient (slope) of the graph represents acceleration.
- A positive gradient means acceleration (speed increasing).
- A zero gradient means constant speed (zero acceleration).
- A negative gradient means deceleration or retardation (speed decreasing).
The area under the graph represents the distance traveled.

Speed time graph

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