Forces of Flight Lift Equation- Drag equation - L/D relation

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What are the forces acting on flight?
Aerodynamic forces- Lift, Drag and Side fore
Propulsive force- Thrust
Gravitational force- Weight
Buoyancy force- Negligible

When air flows over wing it creates resultant. We are solving that resultant in three mutually perpendicular axes. So we get Lift, Drag and Side force.

Write down the equation for lift and drag?
Lift=0.5*(density)* (square of velocity)*(Wing planform area)* (Coefficient of lift)
Drag=0.5*(density)* (square of velocity)*(Wing planform area)*(Coefficient of drag)

If lift increases, what will happen to drag?
Since lift and drag are just the components of the single resultant force which is created because of the airflow over the aerofoil, drag increases if lift increases.

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