It's quite humorous to watch him think he has a point but be so completely clueless as to why he doesn't.<quoted text>It can be determined with all other variables in place, it is not a set speed, sorry a basic concept is WAY OVER YOUR HEAD!
Near the surface of the Earth, an object in free fall in a vacuum will accelerate at approximately 9.8 m/sÂ², independent of its mass. With air resistance acting upon an object that has been dropped, the object will eventually reach a terminal velocity, around 56 m/s (200 km/h or 120 mph) for a human body. Terminal velocity depends on many factors including mass, drag coefficient, and relative surface area and will only be achieved if the fall is from sufficient altitude. A typical skydiver in a spread-eagle position will reach terminal velocity after about 12 seconds, during which time they will have fallen around 450 m (approx 1,500 ft).
Gross mentions free fall speed at (IIRC) 5.4 seconds into collapse. This is a specific reference to velocity.
Here's the twoofer version which is a completely bogus and meaningless statement, "WTC 7 fell at free fall speed".
The difference is between having a clue and not understanding what a clue is.
[His] Ignorance is [His] Bliss