vehicle drag coefficient test. in this vidoe i am being pulled by a 100ft rope that's attached to a 1 ton loadcell (electronic scale) on the front of my car. in this vidoe i did not get enough data to get a accurate average. 1 HP =550 ft/lbs per sec . 110 lbs pull X 58 ft/sec (40mph) / 550 = 11.6 hp. then take the energy in a gallon of gasoline 115000btu and convert 11.6 hp into watts and then to btu and get like 150mpg!
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