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!

Hydrostatic problem help

  1. Jun 30, 2009 #1
    1. The problem statement, all variables and given/known data

    A Cylinder got ratio of 15 cm, and h=15. Their mass=7kg. This is floating in water. After we put oil on it (density=725kg/m^3), on the water.
    Calculate whats the height of cylinder when its in oil.


    Answer=7.6cm


    2. Relevant equations

    F=D x V x g

    3. The attempt at a solution
    I tried everything


    Help please...

    Sorry for my english.
     
  2. jcsd
  3. Jun 30, 2009 #2

    Shooting Star

    User Avatar
    Homework Helper

    Re: Hydrostatic

    Hi, welcome to PF.

    I think you mean "radius"...

    So now that you know the volume and the height, and also the mass, you can calculate the density.
    F is the weight of the cylinder. Now it is surrounded by oil, which is exerting a buoyant force on it.
    Did you try Archimedes' principle? Do that now.
     
    Last edited: Jun 30, 2009
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Hydrostatic problem help
  1. Hydrostatics Problem (Replies: 2)

  2. Hydrostatics problem. (Replies: 2)

Loading...