MadSci Network: Physics

Subject: Crosswind affects drag (and hence power req'd) on a car?

Date: Sat Feb 6 07:47:38 1999
Posted by Eugene Seo
Grade level: 10-12
School: Raffles Junior College
City: Singapore State/Province: Singapore
Country: Singapore
Area of science: Physics
ID: 918308858.Ph

The 'crosswind' is taken as blowing perpendicular to the road the 
car travels on. For the same road speed, does the car require 
more power to maintain this speed in a crosswind than on a still 

I believe the answer should be the power required does *not* 
change (since relative wind velocities can be resolve in mutually 
perpendicular directions), but my physics teacher thinks so 
otherwise. So who's right?

Re: Crosswind affects drag (and hence power req'd) on a car?

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