I don't know how often you get questions like this here, if ever, but I was hoping you could help me solve a problem I have come across in writing a story. It is not exactly Hard Sci Fi, but it is definitely not soft science fiction, and I want to get the physics at least mostly right. Here it is: There is this generation ship, and the way I have it laid out is that every few years, it turns on it's engines for a bit to accelerate it up to, uhh, really fast. (still WAY less than light speed, mind you). The way I have artificial gravity worked out is that the habitation section of the ship is a big sphere that spins around to generate gravity. My question is, would the acceleration pretty much just generate gravity to where the people would just be pushed towards the back, making it more believable to just have a non rotating hab section where the gravity is generated by thrust? Or when the ship is gradually decelerating in the time between engine activation, would there be pretty much 0 G, and the rotating habitation complex would work better? If anyone had no clue what I just asked feel free to ask me what the heck I am talking about.