Youre avin a larf I was going to let you be but if we have to argue could you plz read from the beginning because in order to get you up to date I would have to repeat myself a lot. But just to get you thinking think about what happens try and explain why the water flows out of the cup when its travelling at the same speed as everything else. That should get you up to date.
What makes you think I haven't read this from the start?
Once again you have confused velocity and acceleration.
Water does not flow out of the cup when everything is traveling at the same speed.
Again think of a cup in the space shuttle. The water and cup are traveling at the same speed, but with no acceleration.
Make a hole in the cup: nothing happens.