InterviewSolution
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InterviewSolution
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One end of uniform wire of length `L` and of weight `W` is attached rigidly to a point in the roof and a weight `W_(1)` is suspended from its lower end. If `s` is the area of cross section of the wire, the stress in the wire at a height (`3L//4`) from its lower end isA. `(w_(1))/(S)`B. `(w_(1)+(w)/(4))/(S)`C. `((w_(1)+(3w)/(4))/(S))`D. `(w_(1)+w)/(S)` |
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Answer» Correct Answer - C (c) At length `(3L)/(4)` from lower end, tension in the wire, T=suspended load `+(3)/(4)xx` weight of wire `=w_(1)+(3w)/(4)` `therefore` Stress `=(T)/(S)=(w_(1)+(3w)/(4))/(S)` |
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