Question

a boy takes 80 second to complete one round to complete circular path having diameter what will be the total distance and displacement covered​

Answer 1

the displacement will be zero and distance will be equal to the circumference of the circle that is equal to 2πr

Answer 2

The boy takes 80seconds to complete one round .

the distance will be

$2\pi \: r$

or

$\pi \: d$

the displacement will.be zero as he does'nt take shortest path like going at a path of diameter.

distance will 2pir

and displacement will be 0.