The four tires of an automobile are inflated to a gauge pressure of 19000 Pa. Each tire has an area of.025 m?


automobile
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.

This entry was posted on Wednesday, April 7th, 2010 at 1:41 am and is filed under Other - Cars & Transportation. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “The four tires of an automobile are inflated to a gauge pressure of 19000 Pa. Each tire has an area of.025 m?”

  1. LeAnne Says:

    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

  2. marvin_g_33334 Says:

    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

  3. Emily W Says:

    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

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