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 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Feb 20th 2018, 08:46 PM #1 Junior Member   Join Date: Feb 2018 Posts: 1 Problem Help Hi, I'd like some help with a homework assignment. It involves a container filled with water and the radius at the top (R2) is larger than the radius at the bottom (R1). The forces acting on the filled container are equal. There is a right triangle drawn next to the container, with the hypotenuse as the side of the container and the angle is 60 degrees. This is what I have worked through so far: H=5.81 m A=2.9 m O= 5 m F=PA R2-R1=2.9m Patm+PH2O=PA F=(rho)gV Vcone=piR^2 I have also learned that this container is basically an incomplete cone, and that constructing a cone where R1 is just a slice within that cone can aid in finding the volume of the container in order to find F=(rho)gV. I do not want this done for me. I want help in figuring this out myself. The math is a bit confusing and I'm basically looking for formulas and explanations I can tie together. Thank you!
Feb 21st 2018, 02:30 AM   #2
Senior Member

Join Date: Apr 2015
Location: Somerset, England
Posts: 995
 I do not want this done for me. I want help in figuring this out myself. The math is a bit confusing and I'm basically looking for formulas and explanations I can tie together. Thank you!
That's really good, but what was the question you are trying to answer?

 Feb 22nd 2018, 06:04 AM #3 Senior Member   Join Date: Oct 2017 Location: Glasgow Posts: 269 Usually these sorts of questions involve filling up the container with more water or water leaking out through a hole. Do you have the full question from a book/worksheet?

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