Answer –
Interval 2 (Largest), Interval 3 (Greatest) (Least)
Positive (Intervals 1 & 2), Negative (Intervals 3 & 4) (Interval 3)
The slope of the graph at a given time interval is used to calculate the average speed of a particle shown in the x-t graph.
The magnitude of slope is highest and least restively in intervals 3 and 2 correspondingly, as seen in the graph. As a result, the particle’s average speed is greatest in interval 3 and lowest in interval 2. In both intervals 1 and 2, the sign of average velocity is positive since the slope is positive. In interval 3, however, it is negative because the slope is negative in this interval.