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    Working with stress, strain and Hooke's Law.

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    An 1800 kg car, being lifted at a steady speed by a crane, hangs at the end of a cable whose radius is 6.0 * 10^-3 m. The cable is 15m in length and stretches by 8.0 *10^-3 m because of the weight of the car. Find:

    (a) the stress
    (b) the strain
    (c) Young's modulus for the cable

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    Solution Preview

    a) Stress is the stretching equivalent of pressure -- it is a force per unit area. Here, the force of the car hanging is mg - that is mass times the pull of gravity, or about 17640 N. This makes the ...

    Solution Summary

    This solution briefly explains stress, strain, and Young's modulus, and includes calculations of each for the problem.