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Distance-Time Graphs

The distance-...

Question

The distance-time graph of a car is plotted with on the X-axis and distance on the Y-axis. The graph is a straight line parallel to the X-axis. Which of the following is true about the car?

(a) It is in uniform motion
(b) It is in non-uniform motion
(c) It is not moving
(d) It is moving very fast.

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Solution

(c) It is not moving
In a distance–time graph, if the graph is a straight line parallel to the time axis, then the object, here the car, is at rest (i.e. its distance is constant with time).

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