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A plot of velocity versus time for a bod...

A plot of velocity versus time for a body in rectilinear motion is as shown in the figure.indicate whether acceleration is positive, negative , zero , variable or constant in the region OA, AB, BC and CD.Calculate the distance described up to the point C.What is the displacement up to point C ?

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The correct Answer is:
In the region OA, acceleration is +ve and constant , in AB it is zero, in BC it is -ve and constant, and in CD it is again +ve but variable.Distance =18 m and displacement =15 m
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