The collapse of the world trade center occurred during the terrorist attacks of september 11, 2001, after the twin towers were struck by two hijacked commercial airliners. One world trade center (wtc 1, or the north tower) was hit at 8:46 a.m. Eastern time and collapsed at 10:28 a.m.
How Did World Trade Center Collapse?
The collapse of the World Trade Center towers on September 11, 2001 was one of the most devastating events in American history. The two towers, which stood 110 stories each, were destroyed in a matter of hours after two hijacked commercial jetliners crashed into them. The collapse of the towers, which were home to thousands of people, caused the deaths of 2,753 people.
The cause of the collapse of the towers was a combination of factors, including the impact of the planes and the resulting fires. The impact of the planes weakened the steel columns that supported the weight of the buildings, while the intense fires weakened the steel even more. This caused the floors to sag and buckle, leading to the collapse of the towers.
The planes that crashed into the towers were American Airlines Flight 11 and United Airlines Flight 175. Both planes had been hijacked by terrorists who had boarded the flights in the northeast United States. The planes were flown into the towers in a coordinated attack. The impact of the planes caused immediate destruction of the towers, and the resulting fires weakened the steel even further.
The destruction of the towers was further exacerbated by the fact that the towers were designed to withstand the impact of a Boeing 707, which is much smaller than the Boeing 767s