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Question
What can you say about the motion of an object whose distance-time graph is a straight line parallel to the time axis?
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Solution
When an object is at rest, its distance-time graph is a straight line parallel to the time axis.
A straight line parallel to the x-axis in a distance-time graph indicates that with a change in time, there is no change in the position of the object. Thus, the object is at rest.
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| (a) | (b) |
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