The piston at A has a cross-sectional area of 600 cm² while that of B is 100 cm². The difference in elevation between pistons A and B is 2m. If the intervening passages are filled with oil having specific gravity of 0.825, what force P is required to maintain equilibrium? A 4000 kg oil 2 m 1.20m -0.60m B

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Laws of Equilibrium

A body is said to be in equilibrium if the system of forces acting on the body tends to keep the body at rest, in other words, there is no translation motion or net torque on the body. Under such conditions, the equilibrium conditions are to be applied to analyze the condition. The branch of mechanics that deals with this condition is known as 'statics'. Under equilibrium, there are no net forces on the body.