Question

a body is moving along a circular path of radius R what is the distance and displacement of a body when it completes 2 and half revolution

Answer 1

The body would have completed 2 circles and 1 semicircle.
When it completes 1 full revolution, then distance covered will be
When it completes half revolution, the distance covered will be

Here, total distance =

After 2 and half revolution, the body will be at diametrically opposite point,
displacement = 2R