Question

A body can have 0 average velocity but not 0 average speed

Answer 1

Answer:

Displacement may be zero during traveling when initial and final point are same. Thus,

Avg velocity=Displacement /time, may be zero.

But distance can not zero during traveling hence

Avg speed=distance/time, can not zero.

Answer 2

Answer:

Explanation:

Average velocity = total displacement/ total time taken.

Average speed = total distance / total time taken.

Now,|displacement|<or=distance.

Implies that if displacement is zero, distance may or may not be zero.

If an object thrown upwards goes up to a height of Hm and returns back to the thrower, displacement is 0(average velocity=0)but distance is 2H(average speed is not zero).

Hence average velocity can be zero even if average speed is not zero.

Hope it helped you!