Question

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

Answer 1

Answer:

The answer will be 2r.

Explanation:

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Answer 2

Answer:

a)ans: 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.

b)ans: 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.

c)ans: 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.

d)ans: 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.