You can't address anything I've said so you regurgitate your previously failed claims and go back to bald face lying ala steel plating.<quoted text>Still can't define speed eh, Pork?
<Irrelevant, unread drivel that still doesn't solve for x snipped>
Regurgitating idiocies like "free fall speeds" betrays an ignorance of the exact science that you're trying to claim enough proficiency in that you understand the concepts you clearly don't.
You started all this off by lying and claiming the phrase itself was on reference to "x" velocity that you couldn't name.
Now you're lying by claiming velocity and acceleration are interchangeable terms...which betrays your own ignorance since such a claim is akin to claiming red and blue are interchangeable in describing colour.
You may now go back to lying for twoof!