An object is moving in a circle of radius r. Calculate the ratio of distance and displacement (a) when it completes half the circle (b) when it completes one full circle
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Given raddi =r
Complete half of revolution
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Distance =2×pi×r/2
=pi×r
Displacement =2r
Ratio =pi/2
Complete one revolution
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Distance =2×pi×r
Displacement =0
Ratio =0
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