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Determine the elongation of the steel bar 1 m long and 1.5 cm^2 cross-sectional area when subjected to a pull of 1.5 × 10^4 N.

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Determine the elongation of the steel bar 1 m long and 1.5 cm2 cross-sectional area when subjected to a pull of 1.5 × 104 N. Take Y = 2.0 × 1011 N/m2 .

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Δl = 0.5 × 10–3 m = 0.5 mm

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