A bar of cross-section A is subjected to equal and opposite tensile forces at its ends. Consider a plane section of the bar whose normal makes an angle θ with the axis of the bar. What is the shearing stress on this plane?
A
Shearing stress = F2Asin2θ
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B
Shearing stress = F2Asin3θ
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C
Shearing stress = F2Asin4θ
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D
Shearing stress = F2Asinθ
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Solution
The correct option is AShearing stress = F2Asin2θ
Shearing stress=forcearea
Shearing stress applied on the top face
So, F=Fsinθ
Area of plane section perpendicular to the force =Asecθ