When describing an object sliding down a slope, we say that the normal force is less than the weight of the object, and that the vector weight minus the normal force equals the force with which the object is pushed down the slope. (bottom left in image)
However, when describing a car making a banking turn on an angled road, the normal force seems to be greater than the weight of the object, such that the normal force minus the weight is a horizontal centripetal force. (bottom right in image)
I don't understand how to reconcile these models and was hoping someone could share their insight about it.