EVERY MORNING,SWARAIEE WALLKS ROUND THE EDGE OF A CIRCULAR FIELD HAVING A RADIUS OF 100 M. AS SHOWN EN FIGURE 1.2 (A), IF SHE STARTS FROM THE POINT A AND TAKES ONE ROUND, HOW DISTANCE HAS SHE WALKED AND WHAT IS HER DISPLACEMENT ?

Dear Student,

Given, R = 100 mDistance will be equal to the perimeter of the circle ( as one round of a circular field on the edge is same as the perimeter)Therefore,Distance = Perimeter = 2πR = 2π*(100m) = 200π m = 628.32 mAnd,As after one complete round, she comes back to the staring point.So, Displacement = 0

Regards

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