Final answer:
When a Ferris wheel begins to turn, the forces acting on the system are the gravitational force and the normal force. These forces do not affect the angular velocity or angular momentum of the wheel.
Step-by-step explanation:
When a Ferris wheel begins to turn, there are two forces acting on the system: the gravitational force and the normal force.
The gravitational force pulls the people downwards, while the normal force acts perpendicular to the motion and prevents them from falling off the wheel.
These forces do not affect the angular velocity or angular momentum of the wheel, as they only affect the motion of the people on the wheel, not the wheel itself.
The angular velocity and angular momentum of the Ferris wheel will remain constant as long as there are no external torques acting on it.