Question

A body covered a distance of x meter along a semicircular path. Calculate the
magnitude of displacement of the body, and the ratio of distance to displacement?

Answer 1

Let radius of the circle be 'r'
Length of the semicircle = πr
Given , πr = x
r = x/π
Displacement = Diameter of circle = 2r = (2x/π)
Distance : Displacement = x:2x/π = π/2

Answer 2

Let radius Be (R)
perimeter of semicircle = pie R
given that
x=pie R
R=x/pie
DISPLACEMENT=diameter=2r

2r=2x/pie
Distance:Displacement=x:2x/pie