PULLEYS AND COMPOUND PULLEYS SYSTEMS

In a system of pulleys, the equilibrium between the forces depends on the parth that the rope follows.

PULLEYS

A pulley is a Wheel that rotates around an axis and has a Groove. If we pull rope, belts or chains through pulleys,we can lift objects with less effort. We can divide pulleys into two basic types:

 

COMPOUND PULLEY SYSTEMS

A compound pulley system is a combination of fixed and moveable pulley. It is also called a block and tackle system.The more pulleys there are, the less forcé we need to lift the load. We can combine the pulleys in various ways.