Question

A man moves on a circular path of radius r and comes to his original position. Find the distance travelled and the displacement of the man.

Answer 1

Distance = Total length of the path.
He travelled one circular path. Hence distance is equal to circumference of circle.
∴ Distance = 2 π r

Displacement = Distance between initial and final position
He finally came to his initial position.
∴ Displacement = 0

Answer 2

distance is =2pie r.
displacement =0.