Estimate the maximum elongation

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Reference no: EM131376854

A 5-ton elevator is supported by a standard steel cable of 2.5-in.² cross section and an effective modulus of elasticity of 12 x 10⁶psi. As the elevator is descending at a constant 400 ft/min, an accident causes the top of the cable, 70 ft above the elevator, to stop suddenly. Estimate the maximum elongation and maximum tensile stress developed in the cable (see Figure P7.12).

Reference no: EM131376854

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