[Split]Physics of collision and collapse - split from: Offer to the Truth Movement: L

[A W Smith]

I demand to know how many insects were in the towers, and what their total weight was! Until then, I declare the collapses an inside job!

I demand to know how many drywall screws were in the towers.!

 

[sylvan8798]

I demand to know how many drywall screws were in the towers.!

Office coffeemakers and microwaves! Every company has them!

 

[psikeyhackr]

Well I'm certainly confused as to why you think that is relevant to the collapse,it isn't even relevant to the impacts.You might want to read up on the difference between an elastic and an inelastic collision.

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People that don't have a clue about physics are easy to confuse.

The speed lines in the second code section of this post show the velocities before and after impacts in three different mass distributions.

http://www.thenakedscientists.com/forum/index.php?topic=21925.msg251656#msg251656

It's called the conservation of momentum. The only math of any complexity is the quadratic equation used to compute the time to the next impact so the new velocity due to free fall can be computed.

psik

 

[dtugg]

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People that don't have a clue about physics are easy to confuse.

For example, you are very confused.

 

[FineWine]

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People that don't have a clue about physics are easy to confuse.

The speed lines in the second code section of this post show the velocities before and after impacts in three different mass distributions.

http://www.thenakedscientists.com/forum/index.php?topic=21925.msg251656#msg251656

It's called the conservation of momentum. The only math of any complexity is the quadratic equation used to compute the time to the next impact so the new velocity due to free fall can be computed.

psik

Physicists and engineers feel that you don't have the slightest idea of what you're talking about. You feel that your "special" knowledge trumps everything these professionals learned over years of hard work. Explain what you know that they don't. Tell us how you learned it.

 

[sylvan8798]

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People that don't have a clue about physics are easy to confuse.

The speed lines in the second code section of this post show the velocities before and after impacts in three different mass distributions.

http://www.thenakedscientists.com/forum/index.php?topic=21925.msg251656#msg251656

It's called the conservation of momentum. The only math of any complexity is the quadratic equation used to compute the time to the next impact so the new velocity due to free fall can be computed.

psik

Well your first problem is that you have not tried using a more realistic distribution of masses. WTC1 has a falling mass of, say, 16 floors, falling onto a mass of 1 floor. Then 17 floors falling together onto 1 floor. The difference in mass from floor to floor is negligible, realistically.

When I ran the same program in Matlab using 94 floors (below) and your value of 32 ft/s^2 for g, I got a total fall time of approximately 11.5 seconds. As a calculation purely of conservation of momentum, this is conservative since it does not account for any mass leaving the "falling bodies".