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A car weighs 2200 lb, with 65% of this weight on the front tires. Assume all four tires are inflated to 32 psig at 10°F, and the tires carry no

vertical loads in their side walls. Atmospheric pressure is 14.7 psi. Find the total contact area between the tires and the road [in ]. Now assume the temperature rises to 100°F with no leakage or volume change. What will be the total tire-road contact area now [in ]?

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