Figure $9-30$ Full Alternative Text $$

$9-31.$ A paper tube is formed by rolling a cardboard strip in a spiral and then gluing the edges together as shown. Determine the shear stress acting along the seam, which is at $\backslash (50^\{\backslash$circ$\}\backslash )$ from the horizontal, when the tube is subjected to an axial compressive force of $200$ N $.$ The paper is $2$ mm thick and the tube has an outer diameter of $100$ mm $.*9-32.$ Solve Prob. $9-31\backslash (\backslash$square $\backslash )$ for the normal stress acting perpendicular to the seam. USING MOHRS CIRCLE