Question

A particle is moving in a circular path of radius r. The displacement after half a circle would be:
(a) Zero
(b) πr
(c) 2r
(d) 2πr​

Answer 1

Answer:

(c) 2r

Explanation:

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.

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