The spring mechanism is used as a shock absorber for a load applied to the drawbar AB. Determine the force in each spring when the 50-kN force is applied. Each spring is originally unstretched and the drawbar slides along the smooth guide posts CG and EF. The ends of all springs are attached to their respective members. Also, what is the required diameter of the shank of bolts CG and EF if the allowable stress for the bolts is σ_allow= 150 MPa?

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k = 80 kN/m Н k' = 60 kN/m k' = 60 kN/m 200 mm 200 mm 'D 50 kN