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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


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 
day?

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?

	


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