A steel bar of 20 mm in diameter, 20 cm long was tested to destruction. During test, following observations were made: Load at elastic point 6500 kg, extension at elastic limit 0.022 cm, yield load of 7000 kg, maximum load 13000 kg, final length 25 cm, final diameter 14 mm. Find: (i) Modulus of elasticity, (ii) Yield Stress, (iii) Ultimate Stress, (iv) Percentage elongation, (v) Percentage contraction of area.
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