Please help with this question

Question

A 42.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 22.0 m.

I know all the answers except for "D" the second question (DIRECTION)

(a) What is the centripetal acceleration of the child?

magnitude	m/s2
direction	---Select--- toward the center of the path away from the center of the path tangent to the path The magnitude is zero.

(b) What force (magnitude and direction) does the seat exert on the child at the lowest point of the ride?

magnitude	N
direction	---Select--- up toward the center down away from the center tangent to the left tangent to the right The magnitude is zero.

(c) What force does the seat exert on the child at the highest point of the ride?

magnitude	N
direction	---Select--- up away from the center down toward the center tangent to the left tangent to the right The magnitude is zero.

(d) What force does the seat exert on the child when the child is halfway between the top and bottom? (Assume the Ferris wheel is rotating clockwise and the child is moving upward.)

magnitude	N
direction

Answer 1

Since the cabins remain upright, the normal force exerted by the seat on the passenger points upward. When the cabin is on the side, the normal is tangent to the circle, so its magnitude is not affected by the centripetal force.