An airplane wing of area 10 m² experiences air speeds of 50 m/s and 40 m/s on its surfaces. If air density is 1.2 kg/m³, find the lift.
Q1. An airplane wing of area 10 m² experiences air speeds of 50 m/s and 40 m/s on its surfaces. If air density is 1.2 kg/m³, find the lift.
Answer: 5400 N
Explanation: Lift = ΔP * Area. ΔP = 0.5 * ρ * (v_top² - v_bottom²) = 0.5 * 1.2 * (2500 - 1600) = 0.6 * 900 = 540 Pa. Lift = 540 * 10 = 5400 N.