Your equation will work on solid objects only and then you have to think about their densities. You can not plug into an equation numbers freely willy and go home happy as a clam. It was an aluminum shell bubble vs steel wall. You have been told the shell somehow cut neatly through that crate of hardened steel and was given general physical expression as explanation. An impact like that would result in anything but what you saw in the videos. There was no way the aluminum shell could cut through the wall without anything done to that wall prior to the impact or at east during the impact. It would have been pancaked, turned to dust, incinerated, and that at any high speed and above. There was no debris coming down the wall. There was no explosion on contact, no fire, the plane was just swallowed. It was swallowed not because of the kinetic energy with which it hit the wall, but because most likely the columns had been undone in the place of impact, not a big deal.
You truly have no idea what you are saying do you?
Simply answer is yes an airline traveling at around 500mph would cut through the facade. With a sledgehammer you yourself could make a hole in a wall.
Could you draw a vector diagram showing exactly how debris (I assume you mean from the plane) actually could fall down the wall at impact?
I could draw a diagram showing why debris would not fall down the wall but I will describe it for you. An arrow pointing at the wall, smaller arrow pointing in opposite direction. The only way debris could fall down is if they had some component of it's velocity pointing down orvaway from the direction of the plane. If the plane hit a solid wall like in the video then on impact the debris would fall away from the wall.
But as you saw on the day the plane passed through the facade, the debris maintained forward momentum. Just like a ball passing through a window.
Of course the explosion of the jet fuel would change the situation a little, possible blowing light debris (low inertia) out of the whole, but the explosion itself is going to have no good effect on the building anyway.
When impact happens it isn't like video games where you bounce of.
Seriously try the car impacting on wall experiment I described earlier, let us know how it turns out for you.
It's a win win for you. You'll learn about energy and inertia, and if you are lucky enough to break through the wall you will understand how fast moving objects can pass through solid objects.
Do you have and science or engineering background at all?
"Winding me up" is a British expression.
