Question

an object moves around a circle of radius 7m what is the displacement covered after 2 rounds

Answer 1

Hello friend


If the object completes 2 rounds till the initial position from where it started then the displacement is zero because displacement is defined as shortest path covered by any object.

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Answer 2

the displacement is the stortest distance between the initial and final position

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here the body after two rounds return back to the same initial position so there is no displacement in this case

DISPLACEMENT = 0

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however the distance is not zero.

the distance is equal to twice the circumference of the circle