Question

Is it true to say that a body can have zero average velocity but no zero average speed ? Explain?

Answer 1

Answer:

Yes

Explanation:

Average velocity = Displacement/time

Average speed = Distance/time

If a body travels in a straight line to n distance and return back to its original position. Then we say that his/her displacement is 0

If displacement is zero then average velocity be 0

But he travels n distance in going and n distance in returning back to its original position. So, total distance = 2n

Then, Average speed not equal to 0