NCERT Exercise 2.17 - Motion in a Straight Line
Question: Figure 2.14 gives the x-t plot of a particle in one-dimensional motion. Three different equal intervals of time are shown. In which interval is the average speed greatest, and in which is it the least? Give the sign of average velocity for each interval.
Answer: Greatest average speed: **III**; least average speed: **II**. Average velocity signs: **I positive, II positive, III negative**.
Full step-by-step NCERT solution with diagrams on Something by Zero.