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SAT, 19.10.2021 14:00 coltonsteighner

in a "worst-case" design scenario, a 2000 kg elevator with broken cables is falling at 4.00 m/s when it first contacts a cushioning spring at the bottom of the shaft. the spring is supposed to stop the elevator, compressing 2.00 m as it does so. spring coefficient is 10.6 kn/m. during the motion a safety clamp applies a constant 17000-n frictional force to the elevator.

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