(a) A uniformly rotating merry-go-round spins clockwise as seen from above. A rider stands at the rotation axis, and then slowly walks radially outward toward the rim. How will the centrifugal and Coriolis pseudoforces affect her? How will she have to lean to keep from falling over?

(b) Now suppose the merry-go-round is spinning up, starting from rest and spinning faster and faster in the clockwise sense. The rider again starts at the center and walks outward. What new effect will the rider notice, and how will that affect how she has to lean to avoid falling?