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← ScienceWhich outcome arises when an aircraft's angle-of-attack exceeds the critical limit, defying predictions from the ideal Bernoulli equation?
A)Boundary layer separation and stall✓
B)Decreased parasitic drag coefficient
C)Increased airspeed due to pressure
D)Enhanced lift from laminar airflow
💡 Explanation
Boundary layer separation and stall occur because when exceeding the critical angle-of-attack, the adverse pressure gradient overwhelms airflow, leading to turbulence that disrupts lift; therefore creating stall rather than increased lift because the pressure gradients and airflow assumptions become invalid.
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