Here's another example and question for you to ponder that might help your "understanding" of physics.FLT175 did slow down abruptly INSIDE THE TOWER .
If the whole mass of the alleged airliner is considered in the calculation of how much KE was available to penetrate the tower wall, then the entire aircraft would have to be involved in the act of penetration, therefore any using up of KE in the act of penetrating the wall would have to slow down the entire aircraft as it penetrates the wall.
If I swing an ax a wooden log using the flat side of the ax head it bounces off the log and painfully jars my arms. Yet if I swing that same ax and strike the wooden log with the sharpened edge of the same ax, it splits it.
Please explain why that happens in scientific terms. Let's see what you actually know.
I can't tell you how disappointing it is to watch Spammy - who seemingly loves to play "Pretend Physics" - tuck tail and run when someone offers to accommodate his silliness. You've been at this long enough to know most here will not play his childish games but in the end he will just wait until you leave before returning to play his silly game again. It's the nature of the "Truther" beast.
"I thought the term ‘Truth Movement’ meant that there’d be some search for truth. I was wrong." - Charlie Veitch