What is pulley mechanisms?

Pulley mechanisms are simple machines that consist of a wheel on an axle or shaft designed to support movement and change the direction of force. They are commonly used to lift heavy objects by using ropes or cables that run along the groove of the wheel. Pulleys can be arranged in various configurations, such as fixed, movable, or compound systems, to increase mechanical advantage, making it easier to lift loads. Their applications range from construction and shipping to everyday tasks like raising flags or window blinds.