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  1. Drag (physics) - Wikipedia

    In fluid dynamics, drag, sometimes referred to as fluid resistance, also known as viscous force, is a force acting opposite to the direction of motion of any object moving with respect to a …

  2. Drag Force: Definition, Formula, and Examples - Science Facts

    Feb 2, 2023 · The resistance offered by a fluid, like air and water, is called the drag force or drag when an object moves through it. It acts in a direction opposite to the object’s motion. It is …

  3. Drag Equation - Glenn Research Center | NASA

    Jul 1, 2025 · Drag depends on the density of the air, the square of the velocity, the air’s viscosity and compressibility, the size and shape of the body, and the body’s inclination to the flow.

  4. 5.2: Drag Forces - Physics LibreTexts

    The faster you move your hand, the harder it is to move. You feel a smaller drag force when you tilt your hand so only the side goes through the air—you have decreased the area of your …

  5. Drag Forces | Physics - Lumen Learning

    The faster you move your hand, the harder it is to move. You feel a smaller drag force when you tilt your hand so only the side goes through the air—you have decreased the area of your …

  6. What is a Drag Force? - BYJU'S

    Drag is an example of mechanical force. When a solid body interacts with a fluid (liquid or gas), a drag force is produced on the solid body. Drag forces are not created by any force fields. In …

  7. What Is Drag Force and What Factors Affect It? - Engineer Fix

    Nov 7, 2025 · Drag force is the resistance an object experiences when moving through a fluid, such as a liquid or gas. This force acts parallel to the direction of the fluid flow and in …

  8. Drag | Aerodynamics, Air Resistance & Turbulence | Britannica

    Drag, force exerted by a fluid stream on any obstacle in its path or felt by an object moving through a fluid. Its magnitude and how it may be reduced are important to designers of moving …

  9. Drag Force - Real World Physics Problems

    A drag force is the resistance force caused by the motion of a body through a fluid, such as water or air. A drag force acts opposite to the direction of the oncoming flow velocity.

  10. Drag coefficient - Wikipedia

    Drag coefficients in fluids with Reynolds number approximately 10 4[1][2] Shapes are depicted with the same projected frontal area In fluid dynamics, the drag coefficient (commonly denoted …