When a rubber band is stretched, it exerts an elastic force on the object pulling on it. This force is directly proportional to the extension of the rubber band, meaning that as the rubber band stretches further, the amount of force it exerts increases. This is due to Hooke’s Law, which states that the force exerted by an elastic object is proportional to the extension or compression of the object.
The length of the rubber band will increase as the stone is tied to it and held vertically upwards