Question

17. Give an example of motion in which average speed is not zero, but average velocity is zero.​

Answer 1

Answer:

YES ! It can be possible in an object moving in Circular Path !

Explanation:

An object moving in a circular path at constant speed will have

a non-zero average speed and zero average velocity since velocity

is a vector parameter !!

Answer 2

Given:

average speed ≠ 0

average velocity = 0

To Find :

an example which satisfy the above condition,

If we consider a full circular motion then,

average speed v = distance/time

so if radius of the circle is r  and time t for full one cycle then,

v = (2πr)/ t

average velocity V = displacement/time

                                = 0/t = 0

because displacement is 0.

So, a full cycle of a circular motion is an example which satisfy the above condition.