HI. I've read a lot of posts on centrifugal and centripetal force in space. But they mostly refer to the spinning space stations. I would like to know what happens when you take a motor with an axle and a mass on the end on of the axle, and you start the motor up.. I understand the whole law of "every action has a opposite equal reaction". But does this mean the motor will follow the mass in a small circle or will the whole thing just "hang" there wobbling about? Does anyone know if it has been tested in space? To add to my question... If a person in a "spinning" spaceship touches the side and gets "caught" in the "gravity".. Does it make the ship off balance? I hope you get my question - understand it I mean.. It's bugging me.