Question

find the displacement of the horse in the above question
a horse is tied with a 2 metres long rope at a pole what distance will a Horse run around the pole with rope tightly stretched if it takes one and half round

Answer 1

displacement is rm because the length of the rope is 2 m and it can also the radius of the circle is 2 so 2×r is the displacement so answer is 4

Answer 2

It's easy...
See the length of the rope is the radius of the circular path made by the horse.And it is stretched tightly when he's running around the pole so that's obvious the radius is 2 meter itself. Now he takes one and half round around the pole.
As the displacement is to found it means the shortest distance between the initial position and the final position so displacement will be equal to diameter.
Now the radius is 2mtr so the diameter will be double of the radius. So the answer will be 4 mtr.