Question

a person Travels along a circular path of radius 7 if he completes 4/4th that is full circle, of a circular path. find his distance and displacement.​

Answer 1

$\huge{\underline{\tt{\blue{Find-}}}}$

Distance-?

Displacement-?

$\huge{\underline{\tt{\red{Answer-}}}}$

Distance= circumference of the circular path

             =  $2 \pi r$

             = $2\times3.14\times7$

             =  $43.96$

Displacement= if he completes 4/4th that is full circle, of a circular path then his displacement is 0. {because displacement is equal to the shortest distance as his initial and final point is same so displacement is zero.}

Answer 2

AnSwEr :

${\red\bigstar\large\bold{\mathrm{\underline{\green{Given:}}}}}$

❥ Radius = 7 m

❥ He completes 4/4th of circle (means he take one complete round around the circle)

${\red\bigstar\large\bold{\mathrm{\underline{\green{To\:Find:}}}}}$

❥ Distance Covered

❥ Displacement

${\red\bigstar\large\bold{\mathrm{\underline{\green{Solution:}}}}}$

✤ Distance Covered :

• Distance covered will be the circumference of the circle i.e. 2πr .

➡ $\sf 2 \times \dfrac{22}{7} \times 7$

➡ $\sf 2 \times 22$

➡ $\sf 44\:m$

• DISTANCE COVERED = 44 m

✤ Displacement :

• Since , it is mentioned he takes one complete round , therefore , Displacement here will turn out to be ZeRo .

❥ Reason : Displacement is defined as the shortest distance between the initial and final point . Here initial and final point turns out be same , therefore , Displacement is zero here .

• DISPLACEMENT = 0

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