Änderungen

Freifallbeschleunigung wurde erst für die zweite Phase des Fassadeneinsturzes festgestellt:

Freifallbeschleunigung wurde erst für die zweite Phase des Fassadeneinsturzes festgestellt:

:''• In Stage 1, the descent was slow and the acceleration was less than that of gravity. … By 1.75 s, the north face had descended approximately 2.2 m (7 ft).  

:''• In Stage 1, the descent was slow and the acceleration was less than that of gravity. … By 1.75 s, the north face had descended approximately 2.2 m (7 ft).''

• In Stage 2, the north face descended at gravitational acceleration … This free fall drop continued for approximately 8 stories or 32.0 m (105 ft), the distance traveled between times t = 1.75 s and t = 4.0s.''

:''• In Stage 2, the north face descended at gravitational acceleration … This free fall drop continued for approximately 8 stories or 32.0 m (105 ft), the distance traveled between times t = 1.75 s and t = 4.0s.''

<ref>Final Report on the Collapse of World Trade Center Building 7</ref>, Seite 45

<ref>Final Report on the Collapse of World Trade Center Building 7</ref>, Seite 45