The state of 2 D-stress at a point is given by the following matrix of stresses: $

\left[\begin{array}{ll}

\sigma_{x x} & \sigma_{x y} \\

\sigma_{x y} & \sigma_{y y}

\end{array}\right]=\left[\begin{array}{cc}

100 & 30 \\

30 & 20

\end{array}\right] M P a$ What is the magnitude of maximum shear stressin MPa?

(A) 50

(B) 75

(C) 100

(D) 110

The state of 2 D-stress at a point is given by the following matrix of stresses: $

\left[\begin{array}{ll}

\sigma_{x x} & \sigma_{x y} \\

\sigma_{x y} & \sigma_{y y}

\end{array}\right]=\left[\begin{array}{cc}

100 & 30 \\

30 & 20

\end{array}\right] M P a$ What is the magnitude of maximum shear stressin MPa?

(A) 50

(B) 75

(C) 100

(D) 110

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