Take the tour ×  What would the calculation look like when
computing the wind pressure of a moving vehilce versus
compressed air pressure pushing against the the moving vehicle,
how much compressed air pressure would be needed to combat the
wind of the moving vehicle.?  share|improve this question add
comment  1 Answer  I think you are asking what is the air
pressure caused by a vehicle moving?  It's a little complicated
for a real vehicle with aerodynamics and air moving around it -
but if you imagine a simple shaped object the force is  can
somebody Tex this?  Which says that the force from the air is
1/2 * density of air * velocity squared * drag coeeficent * area
But since pressure is force / area we can drop the area bit and
have the pressure of air just depends on the speed (v^2) and the
shape Cd  You can look up Cd for different shapes, see
http://en.wikipedia.org/wiki/Drag_equation. But it's generally
between 1 for a flat plate and 0.05 for a very streamlined
teardrop.  share|improve this answer add