[] 相対性理論はインチキだろう.
220. 2023年6月26日 14:04:14 : dgCqSsxe9Q : NXFFRmhMWU4ydnM=[1]
"Gavitational Acceleration" (クリ)

If magnitude of vector of gravity and another force (e.g. tension) is the same, body will show the same vector of acceleration. On idiom (compound word) "gravitational acceleration", sense of incongruity cannot be wiped out.

Idiom "gravitational acceleration" seems to be meaningful only limited situationon. Free fall, gravity at the surface of Earth, etc. Is it an idiom of physics ?

If gravity and inertial force are different things, gravity and acceleration are also different things. Will there be qualification of idiom ?
http://www.asyura2.com/0306/idletalk2/msg/1242.html#c220