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Young's modulus and elasticity

Young's modulus, normal stress, longitudinal strain and Hooke's law with derivations, examples and interactive visuals.

Key formulas

  • Normal stress

    Ratio of the perpendicular force to the area on which it acts.

  • Longitudinal deformation

    dimensionless.

  • Young's modulus

    Ratio of the normal stress to the longitudinal strain.

  • Hooke's law

    restoring force of an ideal spring.

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