Question

a body can have zero average velocity but not zero average speed expalin with example​

Answer 1

Example: A person completes one revolution in circular path. Whereas displacement is zero as source and destination is same. Hence A body can have zero average velocity but not zero average speed.

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Answer 2

Answer

Average speed = total distance traveled ÷ time

And distance can not be zero, so average speed won't be equal to zero

Average velocity = displacement÷ time

As displacement can be zero so, average velocity can be zero

Example- a body moving in circular motion, after one complete Rotation, distance = 2πr , but displacement= 0