Physics for IGCSE & O level - Forces And Motion (Section 2 - No. 41)
Which of the following represents zero acceleration?
A straight line on a distance-time graph
A curved line on a distance-time graph
A horizontal line on a speed-time graph
A straight line with a positive slope on a speed-time graph.
Explanation
A horizontal line on a speed-time graph indicates constant speed, therefore zero acceleration.
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