An airplane wing with an average cross sectional area of10m 2 experiences a lift

Question

An airplane wing with an average cross sectional area of10m2 experiences a lift force of 5000 N. What is thedifference in air pressure (in Pa), on the average, between thebottom and top of the wing?
Hint: Pressure P = F/A, Therefore the pressure difference is thedifference in force per unit area. F(bottom) - F(top) = net liftingforce = 5000N. Divide by the area to find the pressuredifference. An airplane wing with an average cross sectional area of10m2 experiences a lift force of 5000 N. What is thedifference in air pressure (in Pa), on the average, between thebottom and top of the wing?
Hint: Pressure P = F/A, Therefore the pressure difference is thedifference in force per unit area. F(bottom) - F(top) = net liftingforce = 5000N. Divide by the area to find the pressuredifference.

Explanation / Answer

   Net liftproduced   F   =   Fbottom   -   Ftop   =   5000   N       Also   F   =   P* A    P   =   Pressuredifference    =>   P   =   5000/ A   =   5000 /10   =   500   N/m2   

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