You are viewing an obsolete version of the DU website which is no longer supported by the Administrators. Visit The New DU.
Democratic Underground Latest Greatest Lobby Journals Search Options Help Login

Reply #30: From Lared's post [View All]

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » September 11 Donate to DU
hack89 Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jul-21-05 09:34 PM
Response to Reply #29
30. From Lared's post
Edited on Thu Jul-21-05 09:34 PM by hack89
"The graph states the the second discrete floor is only under the influence of gravity or potential energy. This cannot be true because the momentum transfer from the first to the second must transfer kinetic energy creating a much higher initial velocity and far shorter fall time."

The point is simply that due to the great mass of the building above the impact zone there was tremendous KE that easily overcame any resistance the second floor might have. The floors were overwhelmed by the dynamic forces placed on them and collapsed with almost no resistance.
Printer Friendly | Permalink |  | Top

Home » Discuss » Topic Forums » September 11 Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002
Software has been extensively modified by the DU administrators

Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC