try to use your head, we dont live in a vacuum, well at least not the rest of us. You cant use freefall in a vacuum and substitute it for real life here on earth.
Oh I see. Since we don't live in a vacuum then we should be using downward acceleration of -6.31 m/s2 (per the article Angelo posted) for free fall acceleration here on earth?
we start with a constant gam, vacuum timing is a typical method of establishing a constant in physics, the rest depends on what you know about applying it, as I just said
If an object is falling at a consistent downward acceleration of -6.31 m/s2, is that considered unrestricted free fall or not?
so your wacky measuring stick requires the use freefall as it occurs in a vacuum despite we (obviously not you) live on the planet earth? get serious gam.
The towers are on earth gam not Alpha Centauri
what do you think you will prove by splitting that hair a couple thousand ways but sunday?