[youtube=http://www.youtube.com/watch?v=Ml_n5gJgQ_U]WTC 7 Free Fall Collapse
lnielsen76 | January 30, 2006
WTC 7 Falls in under 7 seconds. The rate of free fall for the 47 story building is 6.8 seconds.
[youtube=http://www.youtube.com/watch?v=Ml_n5gJgQ_U]WTC 7 Free Fall Collapse
WTC 7 Falls in under 7 seconds. The rate of free fall for the 47 story building is 6.8 seconds.
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