Drag

Drag is the aerodynamic force that opposes an object’s motion through a fluid, such as air or water. When an object moves, it pushes against the fluid, which creates resistance that slows it down. This resistance depends on the shape, size, speed of the object, and the properties of the fluid. For example, a streamlined car experiences less drag than a boxy one, making it easier to drive efficiently. In essence, drag is the force that acts opposite to the direction of movement, affecting how easily objects can move through a fluid environment.