Question

A girl starts from point A goes to O then to B. She then returns to A following a circular track. What is the distance covered and displacement of the girl?
Given: radius = 15 $m$ and length of circular track AB = 80 $m$.

• A. 100 $m$, 0 $m$
• B. 110 $m$, 110 $m$
• C. 110 $m$, 0 $m$
• D. 0 $m$, 110 $m$

Answer 1

The correct option is C 110 $m$, 0 $m$

Distance is the actual path length covered by the girl.
So distance is AO + OB + circular path AB = $2\times radius$ + circular path AB = $2\times 15$+ 80 = 110 $m$
The distance covered by a girl is 110 $m$

Since, she returns to her initial position, displacement is zero.