What is the Formula for Calculating Gauge Pressure of Tires?

[furiousd]

Homework Statement

The weight of a 1142-kg car is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required so the area of contact of each tire with the road is 96.5 cm^2?

W = 1142 kg
A = 96.5 cm^2

Homework Equations

No idea

The Attempt at a Solution

None.


Can someone lead me in the right direction for this question? Any hints? I've never seen a question like this before

 

[aim1732]

You can draw a free body diagram of the tyres(assumed massless) and represent the forces. You know it is in equilibrium.
The clincher: Pressure = Force*Area

 

[aim1732]

Oh so sorry. Its force = pressure*area.