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The velocity time curve of a moving poin...

The velocity time curve of a moving point is shown in Fig. Find the retardation of the particle for the porion `CD`.
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Text Solution

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The slope of the velocity-time graph represents acceleration or positive, it represents accelecration and if the slope is negatitve, positive, it represents acceleation and if the slope is negative, it represents retardation. The section `CD` of the graphe retesebts retardation and magnitude of retardtion is
`|vec a|=(Change in veloity)/(Time taken )=(60)/((70-40))=2 m s^(-2)`.
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