Question

An object is moving in a circle of radius r. Calculate the distance and displacement.
1) When it completes half the circle.
2) When it completes one full circle.

Answer 1

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Half Circle Distance = 22/7 X r

Displacement = r+r=2r

Full Circle

Distance = 2 X 22/7 Xr

Displacement=0

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Answer 2

Explanation:

the above attachment will help you

thanks