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.