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The normalstraindeveloped in each wire is0.00578mmL'AC=√300²+2²+2(300) (2) cos50°=301.734 mmAC=AB=(L'AC — LAC) /LAC =( 301.734—300) /300=0.00578mmAbout StrainStrainis the increase in the length of an object to its original length caused by an externalforcethat affects the object. Strain can also be interpreted as a measure of the dimensional changes that occur due to stress.A spring has tension.Mathematically it is written:Strain= ΔL/LWhere: ΔL = change in length (m)L = initial length (m)Learn more aboutstrainatbrainly.com/question/27896729#SPJ4...