Answer:
The minimum pressure car tire pressure is 300,000 Pa
Explanation:
Pressure
It's a measure of the force exerted by an object per unit surface:
[tex]\displaystyle P=\frac{F}{A}[/tex]
Where F is the force applied on a surface area A.
We are given the total weight of a car with passengers as Ft=30,000 N and we also know the area of contact of each tire with the ground as [tex]A=0.025 m^2[/tex].
The minimum pressure each tire can have is when the total weight is evenly distributed in all four tires, thus F=Ft/4=7,500 N.
Calculating the pressure:
[tex]\displaystyle P=\frac{7,500}{0.025}[/tex]
P=300,000 Pa
The minimum pressure car tire pressure is 300,000 Pa
