Dr Judy Wood’s assertion is that the succeeding pancaking would take at least some bits of time. That would not be consistent with the towers falling at the speed of a free falling rock.
it didn’t fall like a rock, the north tower was hit first and stood for over an hour and a half because the plane hit higher up, the south tower despite being hit second collapsed first, because the plane hit about 20 floors lower and that building still stood for 56 minutes until the tipping point was reached sooner than the North tower because of the greater load on the structure.
• 8:46 am – Mohammed Atta and the other hijackers aboard American Airlines Flight 11 crash the plane into floors 93-99 of the North Tower of the World Trade Center, killing everyone on board and hundreds inside the building.
• 9:03 am – Hijackers crash United Airlines Flight 175 into floors 75-85 of the WTC’s South Tower, killing everyone on board and hundreds inside the building
• 9:59 am – The South Tower of the World Trade Center collapses.
• 10:28 am – The World Trade Center’s North Tower collapses, 102 minutes after being struck by Flight 11.
Now watch the north tower collapse it takes almost 30 seconds from the 32 sec. mark in the video to after 1 minute
https://www.youtube.com/watch?v=3gAnDDukdj4
now based on science and physics gravity accelerates an object at 32 feet per second per second or 9.8 meters per second per second. The WTC was about 1300 feet tall, a rock would free fall that distance in about 9 seconds, less time than the building took to collapse, actually if you look closely you can see that the building debris that falls away from the building falls away faster than the central ‘core’ of the building which is slowed slightly by the progressive failure of each floor as the cascading failure occurs.
And I told you it doesn't fall at the speed of a falling rock. That's another lie the tin-foil hat brigade is telling you so they can push their narratives.
I've timed it myself, several times, from the first sign of failure to the final drop, and it is seven seconds longer than a rock dropped from the top would take to fall that distance. That extra time is fully accounted for in calculating the hydraulic cushioning of the air in each successive floor being compressed and then forced out at high speed after being raised to extremely high temperatures, very slightly slowing down the fall AND accounting for the first few floors mechanically resisting the fall before failure. Have you ever rapidly pushed down on a manual tire air pump which had no place for the air to go?
Each hydraulic cushioning as a floor pancaked took progressively less time as the piston of debris got faster and faster with more kinetic energy added by the force of gravity slightly offset by that hydraulic air compression.
Nothing in air falls at the exact speed of acceleration of gravity (there's that lie). . . the counteracting force of air pressure slows it down. In most atmospheric falls the object falling usually does not add mass and eventually reaches a velocity where the counteracting force of air pressure exactly equals the force of gravity. This is called terminal velocity. It is different for every falling object as it is a function of cross-sectional area in the direction of fall, drag, and aerodynamics.
For example, a skydiver, falling flat, with arms and legs spread, terminal velocity before opening his/her parachute is approximately 155 mph, but going head down, arms tucked in, it's about 220 mph. Opening the chute increases the skydiver's cross-sectional area in relation to the fall, and terminal velocity drops drastically to around 10 to 15 mph or less, so he or she can safely get back on the ground.