A body covered a distance of L metre along a semicircular path. Calculate the magnitude of displacement of the body and the ratio of distance to displacement ?
Let, r be the radius of the semicircular path. The circumference of the circle is = 2Ï€r.
Since, L is a semicircular path, so, L = πr
=> r = L/Ï€
So, displacement og the body is = 2(radius) = 2L/Ï€
Therefore, ratio of distance and displacement is = L : 2L/π = π: 2