mechanics of solids, Civil Engineering

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Ask question #MinThe maximum instantaneous extension, produced by an unknown falling weight
through a height of 4 cm in a vertical bar of length 3 m and of cross sectional
area 5 cm2, is 2.1 mm. Determine (a) the instantaneous stress induced in the
vertical bar, and(b)the value of unknown weight. Take E=2×105 N/mm2imum 100 words accepted#

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