The tires of a 3.0- 103-lb car are filled to a gauge pressure (pressure added to atmospheric pressure) of 32 lb/in2while the car is on a lilt at a repair shop. The car is then lowered to the ground.
a) Assuming that the internal volume of the tires does not change appreciably as a result of contact with the ground, give the absolute pressure in the tires in pascals when the car is on the ground.
b) What is the total contact area between the tires and the ground?
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