How do incline planes facilitate work?

Inclined planes facilitate work primarily by reducing the amount of force needed to lift an object. When a load is placed on an inclined plane, the distance over which the load is lifted is increased, which allows the same amount of work to be done using less force. This is based on the work-energy principle, where work is defined as force multiplied by distance. By increasing the distance and keeping the work done constant, the force that must be applied is effectively reduced.

For example, when moving a heavy object up a ramp compared to lifting it straight up, the inclined plane allows you to exert a smaller force over a longer distance, making it easier to move the object to a higher elevation.