a body is moving along a circular path of radius R.what will be the distance travelled and displacement of the body when it completes half a revolution and full revolution ?
When the body would have completed a semi-circle,
Then the distance would be the circumference of the semi-circle = πr
Also the displacement is the shortest distance travelled between the initial and final point =R +R = 2R
When, the body would have completed a full circle,
Then the distance would be the circumference of the circle = 2πr
And the displacement = 0 (initial and final points are same)