Question

NCERT CLASS IX - Science Textbook
Chapter 8 - Motion

Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?

Answer 1

average velocity = net displacement / total duration of time

average speed =  total distance traveled / total duration of time.

duration of time is a positive scalar quantity.  If the magnitudes  of average speed and velocity are equal,  then,

     net displacement = total distance traveled

This is only possible, if the body travels in a straight line in one direction.