Two principal tensile stresses of magnitudes 40 MPa and 20 MPa are act – McqOptions

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1.	Two principal tensile stresses of magnitudes 40 MPa and 20 MPa are acting at a point across two perpendicular planes. An oblique plane makes an angle of 30° with the major principal plane. The normal stress on the oblique plane is
A.	8.66 MPa
B.	17.32 MPa
C.	35.0 MPa
D.	60.0 MPa
Answer» D. 60.0 MPa

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