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A BREAKING STRESS OF THE MATERIAL OF A WIRE IS 10 2 N/M 2 . THE MAXIMUM LENGTH OF THE WIRE FOR WHICH IT BREAKS UNDER ITS OWN WEIGHT WILL BE (DENSITY OF MATERIAL IS 2 X 10 3 KG/M 3 )?

 
A BREAKING STRESS OF THE MATERIAL OF A WIRE IS  102 N/M2 . THE MAXIMUM LENGTH OF THE WIRE FOR WHICH IT BREAKS UNDER ITS OWN WEIGHT WILL BE (DENSITY OF MATERIAL IS  2 X 103 KG/M3)?
 

Grade:12th pass

2 Answers

Vasantha Kumari
askIITians Faculty 38 Points
7 years ago

181-877_Breaking stress.JPG
Yash Chourasiya
askIITians Faculty 256 Points
11 months ago
Dear Student

Here the weight of the wire will be ALρg
Stress due to its weight = W/A = Lρg
Therefore, Breakdown Stress = Lρg
8 * 106 = L * 2*106 * 9.8
L = 40*10-2 m

I hope this answer will help you.
Thanks & Regards
Yash Chourasiya

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