The four tires of an automobile are inflated to a gauge pressure of 19000 Pa. Each tire has an area of.025 m?
Johnny asked:
The four tires of an automobile are inflated to a gauge pressure of 19000 Pa. Each tire has an area of .025 m squared in contact with the ground. Find the wight of the automobile.
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The four tires of an automobile are inflated to a gauge pressure of 19000 Pa. Each tire has an area of .025 m squared in contact with the ground. Find the wight of the automobile.

April 7th, 2010 at 6:08 am
Not enough information.
You need the tire pressure with the vehicle off the ground - and the tire pressures when they are on the ground supporting the vehicle weight. LeAnne
April 7th, 2010 at 7:05 am
NO clue what the ( wight ) would be ? In fact i don’t even know what a (wight ) is..Maybe you could google a ( wight ) Thingy . marvin_g_33334
April 8th, 2010 at 8:30 am
This should be done using the equation:
P=F/A
where P is the pressure F is the force and A is the surface area. I am using xN to represent the unknown number of Newtons since that is what we are looking for here.
so you would have:
19000 Pa= xN/(4*0.025)
19000 (0.1)=xN
1900=xN
Before you put that answer in, check your variables to make sure the 19000 is correct. I currently have a problem exactly like this one and my P unit is 1.9*10^5 which is 190000. If this is the case, just add another zero to the end of the above solution. Emily W