The double-spring bumper is used to stop the steel billet of weight W in the rolling mill. Determine the maximum deflection of the plate A caused by the billet if it strikes the plate with a speed v. Neglect the mass of the springs, rollers and the plates A and B.

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Given: W = 1500 lb kj ft S v=8- = 3000 k₂ = 4500 ft A k₁ B ki