Question

Centrifugal force increases with

Answer 1

Centrifugal force is not a real force. 

When you move around a curve, there IS a real force pulling you
around the curve.  Since your body wants to go straight, it feels as if
there's a force trying to pull you away from the curve.  But there isn't.

That feeling of a force is greater when your speed around the curve
is greater, or when the curve is tighter, i.e. smaller radius.

Answer 2

Centrifugal force is said to be the outward force being experienced by an object/objects travelling in a circular path. The force is directly affected or depends on the mass of the object, its rotational speed and the object's distance from the center. An object that is bigger, has a greater speed compared to others, and has a greater distance from the center is said to display a greater force. This means to say that centrifugal force increases with the size of the object, its speed when rotating and distance from the center. The bigger the object, the faster the speed and the farther from the center is equal to a greater centrifugal force.