1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Free body diagram and Forces

  1. Feb 17, 2009 #1
    Im working on the problem below and trying to figure out if I have the right approach. Im checing to see if my free body diagram is correct. Also if finding the vertical force exerted on the bottom of the tank is just the differenence of the bouyant force and wieght of the cylinder as showin in my work. thanks

    http://i674.photobucket.com/albums/vv106/jason03_2009/hw11.jpg [Broken]

    http://i674.photobucket.com/albums/vv106/jason03_2009/hw12.jpg [Broken]
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Feb 17, 2009 #2
    would I need to take into consideration the depth of the water?....or just the weight of the cylinder and the bouyant force?
  4. Feb 17, 2009 #3


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Hi Jason,
    Your calculations look fine. In calculating the buoyant force, the depth of the water isn't a consideration. Archimedes principal looks only at the weight of the fluid displaced by the solid object, not the pressure of the fluid.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook