Question

Under what condition is the magnitude of average velocity of an object equal to its average speed

Answer 1

The magnitude of avg velocity of an object is equal to its avg speed when it moves in a straight path,as in that case displacement is equal to the distance.

Answer 2

Magnitude of average velocity of an object becomes equal to average speed when the total distance travelled equals the net displacement of particle. This happens when the particle moves along a straight line in fixed direction.