Question

A boy after going around a circular track of radius ‘r’ comes back to the starting point. What is the displacement of the body and the total distance covered by him

Answer 1

the total distance is the circumference of the track 2*pi*r
and the total displacement is 0.

Answer 2

Displacement=0 (since the boy returns to his original position)
Distance covered=circumference of the circular park=2πr  where r is the radius of the park