How to Calculate Tire Contact Area from Weight and Pressure

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To calculate the tire contact area for a car weighing 15,000N with a tire pressure of 225KPa, the formula A=F/P is used. Each tire supports a quarter of the car's weight, resulting in a force of 3,750N per tire. Converting the pressure from 225KPa to N/sq.meters is necessary for the calculation. The resulting contact area for each tire is approximately 0.01666 square meters. The discussion emphasizes the importance of showing intermediate steps for clarity in problem-solving.
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[SOLVED] my anwers does not look right

Homework Statement


A car has a weight of 15000N. If the pressure of each of the tires is observed to be 225KPa, calculate the area of each tire that is in contact with the pavement.


Homework Equations


A=F/P


The Attempt at a Solution



A=0.01666sq.meters
 
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Welcome to PF. Could you show your working an intermediate steps, please. You are more likely to be helped if you do this, since people will be able to follow your working rather than do it themselves.
 
Just learning the language for inputting my equations, exponents and all that.
 
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dumguy said:
I assume that each tire supports 1/4 of the weight of the car and that works out to be 3750N.I convert the tire pressure from 225KPa into N/sq.meters and do the equation A=F/P. This gives me 0.01666sq.meters. All of which I am doing in SI and rounding with significant digits. I just don't know how to type that.

That looks fine to me.
 

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