XPost: alt.home.repair   
   From: bobnospam@gmail.com   
      
   On 12/26/2021 9:30 AM, Ralph Mowery wrote:   
   > In article , bobnospam@gmail.com says...   
   >>   
   >> Unless the car is upside down, the pressure (PSI) on the windows will   
   >> certainly be less than on the doors.   
   >>   
   >>   
   >>   
   >   
   > It will be less on the windows than on the doors because of the area.   
   > Say a car window has about 2 sqft of surface.  That is 288 sqin for the   
   > window.  If only 1 pound of pressure per sqin that is 288 pounds of   
   > pressure.  If 5 feet under water it will be just over 2 lb per sqin.   
   >   
   > So you have about 500 pounds on the window if just slightly under water.   
   > If around 10 feet under it will be around 1000 pounds of pressure in the   
   > window trying to push in on you .   
   >   
   >   
      
   1 foot of water = 0.43352750192825 pounds/square inch   
      
   It will be less on the windows because the windows are under less   
   pressure than the doors, because the doors are deeper under water.   
      
   If the water is up to the windows, the pressure on the windows is 0, but   
   the pressure at the BOTTOM of the door is about 1 PSI. when the water   
   reaches the top of the window, the pressure is 0 at the top of the   
   window, and maybe .6 PSI at the bottom of the window, and maybe 2 PSI at   
   the bottom if the door.   
      
   Water inside the car lessens the total force on the door and window. If   
   the interior water is as deep as the exterior water, the net force is 0.   
      
   If the car is submerged, breaking that window is going to hit you in the   
   face HARD.   
      
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