A horse is tied to a rope of length 5 m and the other end of the rope is tied to a pole. Find the displacement and the distance travelled by the horse in the following cases.
When the horse makes half revolution along a circular path.

Explanation

Half revolution along the circular path.
Distance travelled by the horse `=(2pi r)/(2) =pi r = pi xx 5 = 5pi m`.
Displacement of the horse = diameter of the circular path,
`bar(H_(1)H_(2))=10m` from `H_(1)` to `H_(2)`