A structural steel rod has a radius of 10mm and a lenght of 1m.A 100kn forse stretches it along its lenght calculate stree
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Radius=10mm
Length=1m=1000mm
Area of road= π×(10)^2
=3.14×100
stress =100×1000/3.14×100
=1000/3.14 N/mm2
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