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Question
What can you say about the motion of a body if:
its displacement-time graph is a straight line ?
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Solution
The body has uniform velocity if its displacement –time graph is a straight line. If the straight line is parallel to the time axis then the magnitude of uniform velocity is zero.
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(i) In speed time graph uniform motion is given by a straight line parallel to x axis so figure (a) denotes the uniform motion.
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