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Fig. 2 (NCT).9 show the x-t plot of a p...

Fig. 2 (NCT).9 show the ` x-t` plot of a particle in one dimensional motion. Three different equal intervals of time are shown. In which interval the average speed is greatest and in which it is the least ? Give th sign of average speed for each interval.
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Verified by Experts

The correct Answer is:
3
By observation, for equal interval of time the magnitude of slope of line in x-t curve is greatest in interval 3.
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