TwasOnTheFifthOfMay
Striker
We'll overlook that gravity is an acceleration not a speed, but in fact if you look a bit more closely you will see debris falling alongside the towers much faster than the towers themselves descend.I'd be leaning more toward controlled demolition as the buildings fell at the speed of gravity, as in the towers offered no resistance to the collapse, this strikes me as mighty strange. Especially considering the amount of structural steel involved, logic would say that it would slow the collapse slightly. I think quite a few eminent engineers and scientists think along similar lines but the tinfoil hat brigade get the press from the debunkers.
So that's that one answered then.