Question

a body is moving along a circular path of radius. what will be the distance and displacement of the body when it completes half revolution

Answer 1

the body would have completed a semi circle
then the distance would be the circumference of the semicircle=pie r

also the displacement is the shortest distance travelled between the initial and final point=r+r=2r

Answer 2

Answer:

So when a particle is moving along a circular path and completes its half revolution, then the displacement is 2r (as the radius of the circular path is r) and the distance covered by the particle is πr. HOPE THIS HELPS YOU.