Question

a particle is moving in a circular path of radius 'r' . what would be the distance covered and displacement after half a circle​

Answer 1

Answer:

Distance will be the half of the circumstance of the circle and the displacement will be equal to double of radius as radius is the half of the circle and displacement is the shortest path traveled from initial point to final point( final-initial point)

hope it helps

Answer 2

Answer:

Given, after half the circle, the particle will reach the diametrically opposite point i.e., from point A to point B. And we know displacement is shortest path between initial and final point. Hence, the displacement after half circle is 2r.

Hope it helps you.