In the hydraulic system shown in the figure, the piston on the left has a diameter of 4.5cm and a mass is 3.0kg.
If the density of the fluid is 710kg/m^3 , what is the height difference h between the two pistons in m?
I checked the other similar questions like this and tried to solve the question using the
Pressure (P) = pgh, but still could not get the right answer.