What is systems of pulley?

A system of pulleys is a mechanical device that consists of wheels and ropes or cables designed to lift or move heavy objects with less effort. By using multiple pulleys, the mechanical advantage is increased, allowing a user to lift a load with reduced force. These systems can be configured in various ways, such as fixed, movable, or compound pulleys, to achieve different lifting capabilities and efficiencies. They are commonly used in construction, shipping, and various industrial applications.