Question

If an object is moving in circular path then average velocity can be zero even If the average speed is not zero

Answer 1

Yes .

The average velocity depends on the net displacement of a body so if a body starts from a position and comes back to same position after some time , the net displacement is zero . Consequently , average velocity is zero . While the speed depends on the actual path length covered . It can't be zero if a body has displaced from its position .