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

(1)  5.2 x 106 Nm–2 

(2)  6.2 x 106 Nm–2 

(3)  4.8 x 106 Nm–2 

(4)  3.1 x 106 Nm–2 

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Best answer

Correct option  (4) 3.1 x 106 Nm–2 

Explanation:

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