a space station looks like a large wheel. the wheel rotates constantly. the inside of the wheel is the floor of the space station. this spinning motion simulates gravity. explain how this works.
a) the spinning motion simulates the rotation of the earth
b) astronauts must push on the floor and apply force on it to make it move
c) all object in the space station require a force from the floor or they would not move
d) circular motion requires acceleration to change direction. this is created by a force that the floor exerts on objects on the inside of the wheel