#### Question

A bar having a square cross section of 30 mm by 30 mm is 2 m long and is held upward. If it has a mass of 5 kg/m, determine the largest angle θ, measured from the vertical, at which it can be supported before it is subjected to a tensile stress along its axis near the grip.

Verified

#### Step 1

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We have the following data:

An inclined bar with angle $\theta$ with respect to the y-axis

$\bullet$ Cross-section of the bar Dimensions: 30 mm $\times$ 30 mm $\bullet$ Length of the bar $L$ = 2 m $\bullet$ Mass per unit length $m$ = 5 $\frac{\text{kg}}{\text{m}}$

Required: $\Rightarrow$ Largest angle $\theta$ without developing any tensile stress

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