Question

Is it possible for a moving body to have non-zero average speed but zero
average velocity during any given interval of time? If so, explain.

Answer 1

Explanation:

As an example, in case of an undamped free oscillator, the average velocity of the particle under oscillation is zero but instantaneous velocity is not equal to zero (different at the different positions) except at the amplitude positions. Yep it can be true for average velocity to be 0 we can have net displacement

Answer 2

Yes. When body returns to its initial position its velocity is zero but speed is

non-zero.

Example, in case of an undamped free oscillator, the average velocity of the particle under oscillation is zero but instantaneous velocity is not equal to zero (different at the different positions) except at the amplitude positions. Yes it can be true for average velocity to be 0 we can have net displacement