Question

A body can have zero average velocity but not zero average speed justify giving an example

Answer 1

Velocity has both magnitude and direction while speed only has magnitude.

Hence average velocity can be zero if a body travels to point 'A' and back to origin, displacement is 0 so average velocity is also 0.

However if body travels same distance to and fro the distance has some value "k". So no matter the time taken, average speed will have SOME value but will never be 0.

Answer 2

Answer:

It has some value but not 0

Explanation:

Because velocity is calculated by displacement so it can be positive, negative or 0 but speed, which is calculated by distance so it must be always positive neither negative nor 0