All objects moving in a circle experience a centripetal force. The form of centripetal force depends on the object in circular motion and the force causing the circular movement. Which of the following describes the correct centripetal force acting on an object moving in a circle? The force of air resistance as a rollercoaster performs a loop on a track.
The force of friction as a car drives around a corner at constant speed.
The force of gravity as a ball on a string is spun horizontally in a circle.
The force of inertia as a person spins on a ride at an amusement park.