What occurs when the pushing force is removed from a non-self-locking inclined plane?

When the pushing force is removed from a non-self-locking inclined plane, the load will slide back down the incline due to the force of gravity acting upon it. A non-self-locking inclined plane does not have mechanisms or features that prevent the load from moving when the applied force is removed.

Once the pushing force is taken away, gravity becomes the dominant force, pulling the load downward along the angle of the incline. This phenomenon can be understood through the concepts of friction and the forces acting on the load. If the friction between the load and the surface of the inclined plane is insufficient to counteract the gravitational component acting along the incline, the load will inevitably slide back down.

The other options describe scenarios that do not align with the characteristics of a non-self-locking inclined plane. The load does not stay in place or move forward, as there is no external force maintaining its position. It also cannot ascend once the pushing force is removed, as there is no mechanism to propel it upward. Thus, the proper response is that the load will slide back down the incline due to gravitational pull.