Question

A particle is moving in a circular path of radius 5 cm.The displacement after a half a circle would be

Answer 1

Explanation:

Given, after half the circle, the particle will reach the diametrically opposite point i.e., from point A to point 6. And we know displacement is shortest path between initial and final point. Hence, the displacement after half circle is 2r.

Answer 2

Answer:

Explanation:

(c) Given, after half the circle, the particle will reach the diametrically opposite point i.e., from point A to point 6. And we know displacement is shortest path between initial and final point.

Displacement after half circle = AB=OA + OB                      [v Given, OA and 06 = 5cm]

Hence, the displacement after half circle is 2r=2×5=10cm

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