(Solution) - Without bracing a machinist can exert only about 100 lbf -(2025 Original AI-Free Solution)

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Without bracing, a machinist can exert only about 100 lbf on a wrench or tool handle. The lever shown in the figure has t = ½ in and w = 2 in. We wish to specify the fillet-weld size to secure the lever to the tubular part at A. Both parts are of steel, and the shear stress in the weld throat should not exceed 3000 psi. Find a safe weld size. br>