A pulley is a simple machine that consists of a wheel and a rope. When you lift an object using a pulley, the force you need to apply is less than the weight of the object. This is because the pulley changes the direction of the force.

If a pulley falls, it will not affect the force you need to apply to lift an object. This is because the pulley is simply a tool that changes the direction of the force. The amount of force you need to apply is still the same.