There is a car driving with speed u opposite the direction of the rotation of the space station. ω=√(g/R) so artificial earth gravity at R. Resulting tangential speed of station is v=√(gR) and centrifugal force is therefore mg radially out. Coriolis force is 2muxω radially in, magnitude 2mu√(g/R). The normal force thus becomes zero when centrifugal force magnitude = coriolis force magnitude or u=½v. My gut tells me it should be u=v. Is this just a case of coriolis force is not always intuitive?