Posted by **Jaime** on Thursday, January 29, 2009 at 11:47pm.

Air streams horizontally past a small airplane's wings such that the speed is 70.0m/s over the top surface and 60.0m/s past the bottom surface. If the plane has a wing area of 16.2m^2 on the top and on the bottom, what is the net vertical force that the air exerts on the airplane?

- physics -
**bobpursley**, Thursday, January 29, 2009 at 11:57pm
http://hyperphysics.phy-astr.gsu.edu/Hbase/pber.html

As a first approximation assume the density of the air is the same on the bottom side as the top.

Pbottom+d*1/2 *Vbottom^2=Pressuretop + d*1/2*Vtop^2

or pressuretop-pressurebottom=d*1/2(Vtop^2-Vbottom^2)

So, after you calculate that pressure difference, multipy it by the wing area, and you have the lift force.

## Answer this Question

## Related Questions

- physics - Modern airplane design calls for a lift, due to the net force of the ...
- Physics - An airplane has an effective wing surface area of 17 m2 that is ...
- College Physics - Modern airplane design calls for a lift, due to the net force ...
- physics - An airplane has an effective wing surface area of 16 square meter that...
- Physics - On a particular airplane wing, air flows over the upper surface with a...
- physics - Find the pressure difference on an airplane wing where air flows over ...
- physics - (a) Find the pressure difference on an airplane wing where air flows ...
- physics - (a) Find the pressure difference on an airplane wing where air flows ...
- Physics - An airplane is moving through the air at a velocity v = 227 m/s. ...
- Physics - An airplane wing is designed so that the speed of the air across the ...

More Related Questions