drag resistance

Drag resistance is the force that opposes an object’s movement through a fluid, such as air or water. It occurs because the fluid pushes back against the object as it moves, creating resistance. Factors influencing drag include the shape, size, and surface smoothness of the object, as well as the speed and properties of the fluid. For example, a streamlined car experiences less drag than a bulky one, making it easier to move and more fuel-efficient. Understanding drag resistance is essential in designing vehicles, aircraft, and ships to improve performance and reduce energy consumption.