A steel wire having a radius of 2.0 m m , carrying a load of 4 k g , is hanging from a ceiling. Given that g = 3.1 π m s - 2 , what will be the tensile stress that would be developed in the wire?

Question

A steel wire having a radius of 2.0 m m , carrying a load of 4 k g , is hanging from a ceiling. Given that g = 3.1 π m s - 2 , what will be the tensile stress that would be developed in the wire?, 5.2 × 10 6 N m - 2, 6.2 × 10 6 N m - 2, 4 . 8 × 10 6 N m - 2, 3.1 × 10 6 N m - 2

MARKS App · Accepted Answer

Stress = m g π r 2 = 4 × 3.1 × π π × 2 × 10 - 3 2 = 3.1 × 10 6 N / m 2

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