Answer to Question #199037 in Physics for surya

Question

1. A body covers half a circle, of radius 1 m.  What is the ratio of distance to displacement of the body?

Answer 1

Distance $s=2\pi r/2=\pi r$

Displacement $l=2r$

$s/l=\pi r/(2r)=\pi/2=3.14/2=1.57$ . Answer