Question

a particle is moving around a circle of radius r find the displacement of the particle after half circle ?​

Answer 1

Answer:

the displacement can be negative but distance never decrease

Step-by-step explanation:

As radius is r so diameter will be 2r and hence half of the circle means radius - displacement will be your starting position abd final position will be 0 because your final and initial positions are same

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Answer 2

Answer:displacement=2r

Step-by-step explanation:As displacement is the shortest distance between initial and final position,thus displacement=diameter of the circle.

That is 2×pi×r/pi=2r