Figure shows the displacement time graph of four
children A, B, C and D. Which child has the highest
velocity?
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Answer:
Child B has the highest velocity
Explanation:
The graph has been attached
We know that rate of change of displacement is velocity
i.e.
But represents nothing but slope of at any instant of displacement-time graph
From the above it is clear that for the graph having the highest slope will have the highest velocity
From the graph it is clear that the displacement-time graph of B has the highest slope
Therefor, B will have the highest velocity.
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