Question

If averge velocity of an object is zero, the average speed of the object must also be zero.
Do u agree with this statement? Justify your answer​

Answer 1

Answer:

$\huge\underline\mathfrak\purple{hola mate}$

No,the statement is not correct.Let a person drive his car from Lucknow to kanpur and then back to Lucknow.For this motion,the average velocity is zero because net displacement is zero but average speed is non zero and finite.

$\huge\mathfrak\orange{thanks}$

Answer 2

If the velocity of an object is 0 then the average speed of the object must also be 0. The statement is not true always. The statement is true only in case of a stationary object. But we know that, velocity is vector quantity, it is dependent on direction and displacement where speed is a scalar quantity and it doesn't depend on the direction. And displacement and distance is not same, displacement is the shortest distance covered by a body where distance is the total length covered by a body. If the object moves in a circular path then the displacement is 0 so, the velocity as well as average velocity is also 0 but the body moves n times through the circular path then the distance covered by the body is equal to the product of the perimeter of the circular path and n. And in this case neither n nor the distance equal to 0 so, neither the speed as well as the average speed is not equal to 0.