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Elastic potential energy is Potential energy stored as a result of deformation of an elastic object, such as the stretching of a spring. It is equal to the work done to stretch the spring, which depends upon the spring constant k as well as the distance stretched.Now see the formulaes to calculate the potential energy is as follows:-

U = ½ kx2

k = 2u / x2

x = √(2U/k)

U = Spring Potential Energy,

k = Spring Force Constant,

x = Spring Stretch Length.

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