The state of plane stress at a point is represented by the stress elem – McqOptions

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1.	The state of plane stress at a point is represented by the stress element below. Assuming tensile force positive and compressive force negative, the principal stresses (MPa) are
A.	50, -50
B.	70, -30
C.	-70, -30
D.	70, 30
E.	30, 70
Answer» C. -70, -30

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