If the spring is cut in half, then the rigidity will increase 2 times, since when the load is suspended from the spring, the elongation of the entire spring is 2 times greater than the elongation of each half, respectively, the rigidity of the entire spring is 2 times less than that of the halves. If the stiffness of the entire spring is 400 N / m, then the halves are 800 N / m.
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