1) A system of three pin connected bars takes the depicted equilibrium position under the given loading with the forces F1 and F2. a) Determine the required ratio of F1/F2 for this case. b) Calculate the forces S1, S2 and S3 in the bars? За 4a F1 F2 G1 G2

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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.