Physics for IGCSE & O level - Forces And Motion (Section 8 - No. 17)
In a speed time graph, what does a straight line parallel to the time axis indicate?
Object is accelerating.
Object is slowing down.
Object is moving at a constant speed.
Object is at rest.
Giải thích
A straight line parallel to the time axis on a speed-time graph indicates that the object is moving at a constant speed.