Question

The maximum safe air pressure of a tire is typically written on the tire itself. The label on a tire indicates that the maximum pressure is 32 psi (gage).
Express this maximum pressure in kPa.

Answer 1

Answer:

220.508 kPa

Explanation:

32 psi = 32 pound force per square inch = 32 lbf/in2 = 32 * (4.448 N/lbf) * (12 in/ft * 3.28 ft/m)^2

$= 32*4.448*(12*3.28)^2 = 220508 N/m^2$ or 220508 Pa or 220.508 kPa

So the maximum safe air pressure of a tire is 220.508 kPa