The South Tower collapsed 56 minutes after being hit, and the North Tower 102 minutes after being hit. Once the buildings began to fall, each took less than 30 seconds to fully collapse. The South Tower, though hit second, collapsed first.
Parts of the South Tower reached the ground about 9 seconds after its collapse began at 9:59 AM EDT, approximately 56 minutes after being hit. The central core of the lower 40 floors caved in within 25 seconds thereafter. Debris flattened or filled the seven basement levels within a few seconds.
The TV mast and roof from the North Tower struck the ground about 11 seconds after the descent began, at 10:28 AM EDT, 102 minutes after being hit. The central core of the lower 60 floors completely collapsed within 10 to 15 seconds after being bypassed by the falling upper floors.
Most of the interior collapse was hidden by dust and debris, which also spread over the surrounding buildings and streets.
For north tower it took 1 hour and 42 minutes to collapse For south tower it took 56 minutes to collapse
The South Tower stood for approximately fifty-seven minutes, and the North for an hour and forty-three minutes between impact and collapse.
It took approximately 2 years to build the Twin Towers.
3 to 4 hours
It took 102 Minutes for the North Tower to Collapse.
It took 12 years.
The twin tours had taken lots of months but I do not know how much.
about 2 minuts
It took about 15 years. not months but years
It took almost 9 whole months to clean up the twin towers. There were many people involved who helped clean up.
The plan was to act like passengers and then get rid of the pilots to take over the plane and fly it into the twin towers
I think the terrorist were mad and wanted America to suffer, so they attacked the Twin Towers.
i think .......about a couple of years but they have got more security now
Depends if the Muslims Hijack your plane and crash it into the twin towers again!
Two planes hit the towers.
It has been nearly ten years, and the damages are not nearly recovered yet.
9:03 am to 9:56 am it took 53 minutes for it to collapse
Not exactly, but the site when he took the oath is only a few blocks away from the twin towers.
None: The twin towers were not re-built, a new set of buildings and memorials were built instead.
In New York City.
I think it took about a week to clean up all the mess from 9/11.
4 years each