A particle is moving in a circular path of radius r. The displacement after half a circle would be
A
zero
B
`pi`r
C
2r
D
`2pi` r
Text Solution
Verified by Experts
The correct Answer is:
C
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. `:.` Displacement after half circle = AB = OA + OB [`because` Given , OA and OB = r] = r + r = 2r Hence, the displacement aftar half circle is 2r.
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