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While an elevator of mass 875 kg moves downward, the tension in the supporting cable is a constant 7730 N. Between t = 0 and

While an elevator of mass 875 kg moves downward, the tension in the supporting cable is a constant 7730 N. Between t = 0 and t = 4.00 s, the elevator's displacement is 5.00 m downward. What is the elevator's speed at t = 4.00 s?

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