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Gauge Pressure of Tires

  • Thread starter furiousd
  • Start date
  • #1
3
0

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? Ive never seen a question like this before
 

Answers and Replies

  • #2
430
2
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
 
  • #3
430
2
Oh so sorry. Its force = pressure*area.
 

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