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Question

The displacement - time graph of a particle moving in a straight line is shown in the figure. Then
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A
Velocity at point D is greater than that at point B
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B
Speed of the particle is increasing continuously
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C
Acceleration is uniform
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D
The particle is first uniformly accelerated and then retarded
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Solution

The correct option is A Velocity at point D is greater than that at point B
The slope of the displacement - time graph at a point gives us the velocity at that point. From the graph, it is clear that the slope at point D is greater than that at point B. Hence the velocity at point D is greater than that at point B. So, option (A) is correct.

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