"Yes, they fell down at freefall acceleration."
Most of the material of the towers was turned into dust in mid air. Dust doesn't fall at free fall acceleration in air. Just because you see the "reaction" going on from top to bottom at nearly free fall acceleration, it doesn't mean that most of the buidling fell as rubble from the top floors down to the ground at free fall acceleration. The rubble pile was very small compared to the original height of the buidlings. Do you get what I mean?! It was meant to look like as if the towers collapsed into their footsprints at free fall acceleration, when actually most of the material was turned into dust in mid air before ever reaching the ground.
I have seen photos of the bathtub. There were no signs of previous molten metal. If there was a lake of molten metal, they couldn't have cleaned out the bathtub in such a short amount of time like they did. How do you remove a massive block of steel from a bathtub? Also if the heat melted the soles of the workers, their feet would have been cooked long before that. How did they use their hydraulic equipment when it was supposedly so hot at the site? I believe this molten metal lake stuff is all disinformation. There is not one single photo that shows a lake of molten metal beneath the rubble of the twin towers. But there are photos of a perfectly cleaned out bathtub at ground zero.
I was there. There were fires burning for weeks. No molten lake or talk of.