Question

Q14. A body can have zero average velocity but not zero average speed. Justify,​

Answer 1

Answer:

Explanation:

Net displacement can be zero but total distance can not be zero. So, average velocity can be zero but average speed can not be zero. A body can have zero average velocity but not zero average speed because velocity is displacement / time and speed is distance / time.

Answer 2

Answer:

because average velocity is defined as total displacement upon time and displacement can be zero but average speed is defined as total distance upon total time and distance never be zero