1. Not finding help here? Sign up for a free 30min 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!

Hydraulic Lift

  1. Oct 5, 2008 #1

    zuN

    User Avatar

    1. The problem statement, all variables and given/known data
    The 70kg student in the figure balances a 1200kg elephant on a hydraulic lift. A second 70kg student joins the first student. How high do they lift the elephant?
    diameter of the piston elephant is on = 2.0m
    diameter of the piston student is on = 0.48m
    The liquid inside the lift is oil, therefore rho = 900 kg/m3
    Out would be elephant, In would be the students

    2. Relevant equations
    Fout/Fin = Aout/Ain
    Fout=Aout/Ain x Fin - [tex]\rho[/tex]ghAout

    3. The attempt at a solution
    I tried both equations
    Fout/Fin = Aout/Ain
    (rho x g x h x Aout) / (140 x 9.8) = (pi x 12) / (pi x 0.242)
    which ended giving me h = 0.86m which was wrong.

    When i tried it with the other equation i ended up with 0.44m which was wrong as well.

    I am not sure if I'm using the wrong formula though so someone please give me some guidance.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Hydraulic Lift
  1. Crane lifting crate (Replies: 0)

Loading...