Velocity-time graphs
1 mark · EasyOn a velocity–time graph, what does it mean if the line is horizontal?
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Constant velocity
Also accept: The object moves at a steady speed
Common mistakes: Object is at rest (unless the line is on the x-axis)
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Marking points
B1 · 1 mark · States the object moves at constant velocity or constant speed
Worked solution
A horizontal line on a velocity–time graph means the object is moving at constant velocity.