What is the tensile stress on the cross-secti | vedclass

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(C) Tensile stress is defined as the normal force per unit area acting on the cross-section.Let $A$ be the area of the cross-section perpendicular to

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$F \cos^2 	heta / A$

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(C) Tensile stress is defined as the normal force per unit area acting on the cross-section.Let $A$ be the area of the cross-section perpendicular to the force $F$.The area of the inclined cross-section $PQRS$ is $A' = A / \cos 	heta$.The component of the force $F$ normal to the cross-section $PQRS$ is $F_N = F \cos 	heta$.Therefore,the tensile stress $\sigma$ is given by:$\sigma = \frac{F_N}{A'} = \frac{F \cos 	heta}{A / \cos 	heta} = \frac{F \cos^2 	heta}{A}$.

What is the tensile stress on the cross-section $PQRS$?

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