A friend asks you how much pressure is in your car tires.  Unfortunately, you have misplaced your gauge but confident in your knowledge of physics you tell your friend “I can figure it out”.  From the owner’s manual you find that the car’s mass is 1450 kg and that the tire manufacturer recommends 32 psi.  Assuming that each tire supports one-fourth of the weight of the car, you use a ruler to find that the tires are 15 cm wide and the flattened segment of the tire in contact with the road is 16 cm long.  What answer do you give your friend? Express your answers in pounds per square inch (psi)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A friend asks you how much pressure is in your car tires.  Unfortunately, you have misplaced your gauge but confident in your knowledge of physics you tell your friend “I can figure it out”.  From the owner’s manual you find that the car’s mass is 1450 kg and that the tire manufacturer recommends 32 psi.  Assuming that each tire supports one-fourth of the weight of the car, you use a ruler to find that the tires are 15 cm wide and the flattened segment of the tire in contact with the road is 16 cm long.  What answer do you give your friend?

Express your answers in pounds per square inch (psi)

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