Question

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

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Answer 1

Answer:

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

Hope it helps you............

Answer 2

2r

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