In the engineer's lift formula L = Cl * (1/2)p * v^2 * s, what does v represent?

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Multiple Choice

In the engineer's lift formula L = Cl * (1/2)p * v^2 * s, what does v represent?

Explanation:
v is the velocity of the aircraft through the air—the true airspeed, i.e., the speed of the airflow relative to the airplane. In the lift formula, lift depends on dynamic pressure, which is 1/2 ρ v^2. So as the aircraft moves faster through the air (v increases), dynamic pressure increases and more lift is produced, assuming density and wing area remain the same and the lift coefficient is constant. This velocity term is not the wing area, the air density, or the lift coefficient—the other factors in the equation.

v is the velocity of the aircraft through the air—the true airspeed, i.e., the speed of the airflow relative to the airplane. In the lift formula, lift depends on dynamic pressure, which is 1/2 ρ v^2. So as the aircraft moves faster through the air (v increases), dynamic pressure increases and more lift is produced, assuming density and wing area remain the same and the lift coefficient is constant. This velocity term is not the wing area, the air density, or the lift coefficient—the other factors in the equation.

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