What would be the increase in tractive force (negative lift) by the addition of a spoiler to a vehicle. find this for a vehicle traveling at 200 mph and a coefficient of friction between the tires and the ground of 0.6. the density of the air is 0.00238 slugs/ft, the dimensions of the spoiler is 1.5 ft by 4 ft and the lift coefficient is 1.1

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explanation:

answer:

design model: consists of design geometry; can be 2d or 3d; typically has a black background.

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elements: an element is a single part of a larger group.

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