An 805-kg stone at the end of a steel youngs modulus 20 x, Ask an Expert

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An 8.05-kg stone at the end of a steel (Young's modulus 2.0 x 1011 N/m2) wire is being whirled in a circle at a constant tangential speed of 19.7 m/s. The stone is moving on the surface of a frictionless horizontal table. The wire is 4.92 m long and has a radius of 1.42 x 10-3 m. Find the strain in the wire.

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