Question

a particle is moving in a circular path of radius r. what will be displacement after half a circle?

Answer 1

Hey friend, ☺ here is ur answer _________________________

The answer is 2r ( r + r ).

As we know, that the displacement is the shortest distance covered by the body between the initial point (A) and final point.(B)

the body covers only the half distance , so the displacement will be 2r.