How do I do this physics question?

Question

A ferris whell with a radius of 9.5m rotates at a constant rate, copmpleting one revolution every 32 s. What is the direction and magnitude of a passegner's acceleration when (a) at the top and (b) at the bottom.

Answer 1

First you calculate angular velocity w. It is 2*pi (3.1416)/32 sec

An object revolving at w has a centripetal acceleraton a = r w2 (r * w*w)

At the top, the passenger experiences gravity "g" and the centripetal accel pointing down, so net accel = g + a (pointing down)

At the bottom, the centripetal accel is pointing up but gravity is still down, so net accel = g -a (pointing down)

Answer 2

You will need to describe a rotational vector. If you need a formula, check your text, or the Internet. Should be a simple plug and play.