NCERT Exercise 2.9 - Motion in a Straight Line
Question: Explain clearly, with examples, the distinction between: (a) magnitude of displacement and total path length over an interval; (b) magnitude of average velocity and average speed over the same interval. Show that the second quantity is ? the first in both cases. When is equality true?
Answer: In both cases, second quantity ? first. Equality when motion is **unidirectional along a straight line**.
Full step-by-step NCERT solution with diagrams on Something by Zero.