Question

a body is moving along the circumference of a circle of radius R and completes half of revolution the ratio of its displacement to distanc

Answer 1

than what do u want from this question if the Half of revolution is there than 180 degree of displacement & distance will be there

Answer 2

Howdy!!

your answer is--

Given , radius of circle is R

since , a body complete half revolution of the circle

therefore , distance = πR

now, displacement = 2R
because , the shortest distance between initial and final is the diameter of a circle


now ,
$\frac{displacement}{distance} = \frac{2r}{\pi \: r} = \frac{2}{ \frac{22}{7} } \\ = \frac{14}{22}$

= 14:22


hope it help you