Question

A person moving in the circular path of radius "r". calculate the distance and displacement covered in
a) 3 rounds
b) 2.5 rounds

Answer 1

the perimeter of the circe is 2πr.therefor the distance covered by it in 3 rounds is 2πr × 3 ⇒6πr
2πr × 2.5⇒10.5πr

Answer 2

Distance for3 roun=2×3.14×r×3 displacement is 0