Quote:So assuming a zero gravity environment, what forces would impact human physiology as to make acceleration described in this thread potentially untenable?

 

I'll shut up after this...promise.

 

It's the inertia that you are overcoming and that is what causes problems for human passengers.

 

As Newton states, an object at rest will stay at rest. In order to get that object out of rest, you have to apply force to it. The greater the force on the object, the greater the object resists movement. This resistance to movement is what you feel when you push the accelerator in your car. The force being applied is from the engine. You aren't feeling gravity, what you are feeling is your car (and yourself in it) resisting the change in it's state due to the force being applied via your engine.

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