Question

Вычислите силу давления на крыло самолёта длиной 849 см, шириной 170 см при нормальном атмосферном давлении

Answer 1

F=p*s=760*133,3*8,49*1,7=1,46*10^6 H

Answer 2

Calculation of Pressure Force on an Airplane Wing

To calculate the pressure force on an airplane wing, we need to know the area of the wing and the atmospheric pressure. Given that the length of the wing is 849 cm and the width is 170 cm, we can calculate the area of the wing as follows:

Area of the wing = length × width

Area of the wing = 849 cm × 170 cm

Area of the wing = 144,330 cm²

Now, we need to determine the atmospheric pressure. The normal atmospheric pressure at sea level is approximately 101,325 pascals (Pa) or 1 atmosphere (atm).

Using the given information, we can calculate the pressure force on the wing as follows:

Pressure force = atmospheric pressure × area of the wing

Pressure force = 101,325 Pa × 144,330 cm²

Pressure force = 14,619,769,250 Pa·cm²

However, we need to convert the pressure force from pascals and square centimeters to a more commonly used unit, such as newtons (N) and square meters (m²).

To convert the pressure force, we need to know the conversion factors:

1 Pa = 1 N/m² 1 cm² = 0.0001 m²

Using these conversion factors, we can convert the pressure force as follows:

Pressure force = 14,619,769,250 Pa·cm² × (1 N/m² / 1 Pa) × (0.0001 m² / 1 cm²)

Pressure force = 1,461,976.925 N·m²

Therefore, the pressure force on the airplane wing is approximately 1,461,976.925 N·m².

Please note that this calculation assumes that the pressure is evenly distributed over the entire wing surface and does not take into account other factors such as airspeed, angle of attack, or wing shape, which can affect the actual pressure distribution on the wing.