What is accomplished by the simple pulley

Answer 1

A simple pulley is able to change the direction of force applied to move an object, thereby making it easier to lift or move heavy objects. By using a pulley, it allows for a person to lift or move objects that they may not be able to do by themselves due to the mechanical advantage gained from the pulley system. This simple machine helps to reduce the amount of force needed to lift an object, making tasks easier and more manageable.