Question

An airplane has two wings, each with area 5.00 m2, designed so that air flows over the top of the wing at 240 m/s and underneath the wing at 220 m/s. What is the mass of the airplane such that the lift on the plane will support its weight, in 103 kg?. Note. Assume the force from the pressure difference across the wings is directed straight upward. Density of air is 1.29 kg/m3.

Answer #1

We can use bernouli's theorem in this problem:

.

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?
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** 1 degree of attack is 0.65.

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ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

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