Originally posted by: 91TTZ
Originally posted by: SP33Demon
Are you still talking? I ignored you the first time since it's common knowledge that mass does not factor into this equation once the towers have started falling.
In 1586, Simon Stevin reported that different weights fell a given distance in the same time. His experiments were conducted using two lead balls, one being ten times the weight of the other, which he dropped thirty feet from the church tower in Delft.
Never done a Falling Bodies Experiment, have we? Now kindly stfu.
You're really making yourself look bad here.
Mass definitely DOES figure into this scenario, since we are talking about a mass's ability to break the floor below it.
If you had 1 floor crashing down on the floor below it, it might not be able to overcome the strength of the lower floor. If you had 3 floors crashing down, they might break the lower floor, but their motion will have been significantly slowed down. If you have 50 floors crashing down on the floor below, they'd easily overcome the strength of that floor, and their momentum would hardly be slowed at all.
In the situation with the towers, a large chunk of the towers began to fall onto the floors below. It didn't start with the top floor and cascade down, it was a pretty large section of tower which crashed down.
Excellent response. Many of the posters on this thread need to gain some understanding of the difference between dead load and live load.
Unless people understand engineering to that limited degree, I suggest they refrain from continuing to post on this subject.
The amount of misinformation in this thread is staggering and very disappointing.