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

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Solution

Distance is AB

$θ = \frac{a r c l e n g t h}{r a d i u s}$

$\frac{π}{3} = \frac{A B}{200}$

$A B = \frac{200 π}{3}$

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

Distance is ABθ=arc lengthradiusπ3=AB200AB=200π3

Distance is AB

$θ = \frac{a r c l e n g t h}{r a d i u s}$

$\frac{π}{3} = \frac{A B}{200}$

$A B = \frac{200 π}{3}$