One end of uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight W1 is suspended from its lower end. If S is the area if cross-section of the wire, the stress in the wire at a height (3L/4) from its lower end is

Engineering

Physics

Forces and Types of Forces

Free Body Diagram

Stress Strain and Hookes Law New

Question

One end of uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight W₁ is suspended from its lower end. If S is the area if cross-section of the wire, the stress in the wire at a height (3L/4) from its lower end is

[W₁ + (W/4)] /S

(W₁ + W)/S

W₁/S

[W₁ + (3W/4)]/S

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F = $[\frac{3 ω}{4} + ω_{1}]$ Stress = $\frac{F}{S}$ = $\frac{[ω 1 + \frac{3 ω}{4}]}{S}$