A concrete column 20 ft high shortens to 19 ft 11-1/2 in. under a load. Determine the strain in the column.
What will be an ideal response?
Strain, ? = [(change in length, ?)/(original length, L)]. ? = 0.5 in. L = 240 in. Hence, ? = [0.5/240] = 0.0021.
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