Displacement of a person moving from X to Y along a semicircular path of radius r is 200 m. What is the distance travelled by him?

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Solution

From the figure, Displacement is straight line segment AB and Distance traveled is curve .
Given, Displacement AB = 2 r = 200 m
So, r = 100 m
Hence,
Distance, AB
= $π$ r
= 3.14 $\times 100$ m
= 314 m

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Displacement of a person moving from X to Y along a semicircular path of radius r is 200 m. What is the distance travelled by him?

From the figure, Displacement is straight line segment AB and Distance traveled is curve .Given, Displacement AB = 2 r = 200 mSo, r = 100 mHence,Distance, AB= πr= 3.14 ×100m= 314 m

From the figure, Displacement is straight line segment AB and Distance traveled is curve .
Given, Displacement AB = 2 r = 200 m
So, r = 100 m
Hence,
Distance, AB
= $π$ r
= 3.14 $\times 100$ m
= 314 m