What is a common application of pulleys?

A common application of pulleys is to elevate heavy loads, which is essential in systems like elevators and cranes. Pulleys work by redistributing the weight of the load, making it easier to lift heavy objects with less force compared to lifting them directly. When a rope or cable passes over the pulley, it changes the direction of the force applied. This allows a user to pull down on one side of the rope, which then lifts the load on the other side. This mechanical advantage makes pulleys a powerful tool in construction, manufacturing, and various applications where heavy lifting is required, ensuring safety and efficiency in lifting processes.