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The distance of a particle as a function of time is shown below. The graph indicates that

1. the particle starts with certain velocity but the motion is retarded and finally the particle stops
2. the acceleration of the particle varies
3. the acceleration of the particle is constant throughout
4. the particle starts with another constant velocity the motion is in acceleration and finally the particle moves with another constant velocity

Correct answer: the particle starts with certain velocity but the motion is retarded and finally the particle stops

Solution

On a distance–time graph, slope represents velocity. Since the slope decreases with time and finally becomes zero, the particle is slowing down and eventually stops.

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