Sugarless gum can also be used as a vehicle to deliver medicaments that may benefit oral and systemic health. Chewing gum products can be formulated to assist caries reduction by remineralization or neutralization of plaque acid.
The net force on the object then, is zero, and the result is that the velocity of the object remains constant. Terminal velocity is the highest velocity attainable by an object as it falls through a fluid (air is the most common example, but the concept applies equally to any fluid). It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object.
I believe I've heard quoted before that terminal velocity for a human is about 120 mph (disreguarding the position of the body here). Acceleration due to gravity is 9.8 m/s^2. Converting that to English (and hoping I don't screw up my units), I get about 21 mph/s.