lift and drag
Lift refers to the upward force generated by an object, such as an aircraft wing, due to the flow of air over its surface. It allows the object to stay airborne and counteract the force of gravity. Drag, on the other hand, is the resistance or friction experienced by an object moving through a fluid, usually air. It acts in the opposite direction of motion and opposes the object's forward movement. In summary, lift helps an object stay airborne by providing an upward force, while drag resists the object's forward motion.
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