Question

A particle is moving in a circular path of radius r. The displacement after half a circle would be​

Answer 1

Answer:

Displacement at half path is the shortest distance between the initial and final point.

So, it's equal to twice the radius of the circle =2r

Answer 2

Answer:

It will be 2r.

Explanation:

Semicircle means half a circle. So if I move along the perimter of a semicircle then I would be directly across my starting point. So thatvmeans twice the radius which is 2r.