[WhiskeyX]

In any place within a field of gravity where your own vector of motion relative to the gravitational vector of acceleration results in a zero net vector of motion in any direction. In other words, zero gravity is not so much as not being in the presence of a field of gravity as it is experiencing no gravitational acceleration against an object resistant to the pull of gravity. Hence it is possible to experience weightless zero gravity conditio9ns in the cabin of an aircraft diving towards the surface of the Earth and well within the strong attraction of the Earth’s gravitational field. The acceleration effects of gravity are restored just as soon as the diving aircraft stops descending into the Earth’s gravitational field at the same speed as the Earth’s gravitational acceleration. The same is true for any body in orbit around another object in space. So long as your body is in freefall within a gravitational field, the balancing of the gravitational force and the force of momentum results in a weightless zero gravity experience, which then becomes felt as a force of acceleration the moment the force becomes unbalanced in any direction.

[grey_whiskers]

In any place within a field of gravity where your own vector of motion relative to the gravitational vector of acceleration results in a zero net vector of motion in any direction.

Bzzt.

How does one combine vectors with different fundamental units?

Sounds to me like this would be only a temporary condition in the absence of an additional force besides gravity.

...and then I read the rest of your post, which says the same thing, in different words.

Cheers!

[ForGod'sSake]

Eloquent but irrelevant dodge. Just come out and say it, you misspoke; the “zero gravity environment of space” is miniscule, approaching nonexistent, compared to the rest of space. “Space” or “outer space” is a meaningless term when you think about it with the possible exception of moving outside an atmosphere.