Final answer:
The three types of drag force are linear drag proportional to speed, quadratic drag proportional to the square of the speed, and a combination of both. Body suits provide aerodynamic benefits to athletes but may also cause discomfort. Linear drag applies to slower motion, while quadratic drag is relevant at higher speeds with turbulent flow.
Step-by-step explanation:
The three different types of drag force experienced by a moving object in a fluid (like air or water) depend on the object's speed and conditions of motion. The first type of drag is linear drag, which is directly proportional to the speed of the object. This drag force is typically experienced at lower speeds where the fluid flow around the object remains relatively smooth and laminar. The second type, quadratic drag, is proportional to the square of the object's speed and becomes significant at higher speeds when the flow becomes turbulent, creating more resistance. The third type is a combination of linear and quadratic drag, which can be applicable in certain ranges of motion or for objects with specific shapes.
Regarding athletes who wear body suits, the aerodynamic benefit provided by reducing the drag force is a major pro, potentially improving performance. However, a con might be the discomfort or restriction of movement that an athlete might experience. Additionally, body suits can be expensive and might not be readily available to all athletes.
For an object moving in a liquid, linear drag generally applies to slower, smooth motions. In quicker, turbulent conditions, the quadratic drag expression, Fp x v², is more applicable. An example of this would be the increasing drag experienced by a car traveling at higher speeds.