Force on plane inclined immersed surface

  1. I have a HW problem dealing with an inclined immersed surface. I can work the problem jsut fine except this problem says that the gate weighs 800lbf, and and dont know what to do with this number. how does it come into play???
     
  2. jcsd
  3. this number is useless when hing is in the middle
     
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