Here's how you'd figure it out.<quoted text>
So you are saying if you crash into a very large tree with an auto if your momentum is high enough you will snap through the tree... I have a bridge I'd like sell you.
What was the mass of the car?
What speed was it traveling at?
What was the cross sectional dimension of the tree?
What was the density of the wood?
Now a collision between the planes and the towers.
Oh, some scientists already did that...
"Aircraft Impact Damage"
Now if you think your personal incredulity has any bearing on reality, it's quite understandable how you ended up with an imaginary bridge.
What did you pay for it?