Dear Experts, I believe that we use the concept of Pseudo Forces, to analyze mechanics within an accelerating frame of reference. Pseudo force seems to be a 'correction' in acceleration provided to all the points that are not riveted to the accelerating frame of reference. And centrifugal force is the pseudo force when we consider a rotating frame of reference. Assuming a truck with a friction-less carrier lodging a block, when the truck accelerates forward, it is easy to understand that the block which has no reason to move along with the truck stays where it is, and to an observer in the frame of reference of a truck feels that the block is moving away from the truck with an equal acceleration. At the same time, considering a spaceship , spinning at a particular angular velocity, and all the occupants aloft inside it, it is hard to comprehend how they get pushed to the edges/walls of the spaceship.What propels them to the edges? Or how can we understand the object being driven to the edges?