the only difference it would make to the wall would be the size of the splatter or whether or not rad would make it through the wall, but either way its inconsequential. I don't think even the thickness of rad's skull would be able to cause a complete collapse of the wall no matter how fast he was going. Same holds true for the planes hitting the towers. This analogy is actually quite appropriate even though in jest. But all joking aside, the faster the plane, the greater would be the lateral shear forces to break the vertical columns and thus prevent transmission of the force on the lower portions of the columns and thus resulting in less sway.<quoted text> To the person being shot out the canon no, to the wall yeas.
Here is another analogy since it fits your anagram name. Imagine hitting a small tree with a bar. If you hit it slowly you would cause it to bend. Now if you hit it fast enough to break it then the bar would essentially act like an ax and the tree would not bend very little as the lateral shear force would overcome the vertical shear strength of the tree.
I knew at some point your anagram name (Bar as Ax) would come in handy and now you gave me the opportunity to use it to deliver a message at the same time. Thanks.