Alright, I don't have a specific homework problem here, just a general question. I've attached two pages that I will be referencing. Figure 1. Inclined Plane As can be seen here, the FN = mgcos(∅) Figure 2. Banked Curve It seems as if the opposite is true here. FNcos(∅) = mg The same holds true for the horizontal components. My question is, what is happening here? Why is there different notation all of a sudden. I completely understand the proof for the banked curve I just don't follow the inclined plane problem. It seems as if the two should be identical. What am I missing here? Any effort would be extremely appreciated! Honestly, the work the guys who answer questions here is amazing and I really plan on contributing to the community when I feel I'm qualified to help!