Horse

Riddle: A horse is tied to a five meter rope in front of an old saloon. Six meters behind the horse is a bale of hay. Without breaking his rope, the horse is able to eat the hay whenever he chooses. How is this possible?

Answer: The rope is not tied to anything else. Source: https://www.riddles.com/1277

A horse is tied to a five meter rope in front of an old saloon. Six meters behind the horse is a bale of hay. Without breaking his rope, the horse is able to eat the hay whenever he chooses.
How is this possible? — horse by Anonymous Riddle