For the inclined plane scenario, if you’re applying a force horizontally (eg by dragging with a rope) and the object has to slide up and over an inclined bump…

For the inclined plane scenario, if you’re applying a force horizontally (eg by dragging with a rope) and the object has to slide up and over an inclined bump… even a frictionless incline of 45° will require you to pull horizontally with the more force than the object’s weight in order to get it to move.