A rod of steel of \(1\text{ cm}^{2}\) in cross-sectional area and \(100\text{ cm}\) long is subjected to an axial pull of \(20000\text{ N}\). If \(E = 20 \times 10^{6}\text{ N/cm}^{2}\), the elongation will be
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Double check unit consistency during calculations.
Keeping all units in terms of Newtons and centimeters in this question prevents unnecessary conversion errors and leads directly to the answer in centimeters.