Question: The stresses on two perpendicular planes though a point in a body are 1 6 0 MPa and 1 0 0 MPa both compressive along

The stresses on two perpendicular planes though a point in a body are 160 MPa and 100 MPa both compressive along with a shear stress of 80 MPa. Determine the normal an the shear stresses on a plane inclined at 30 degree to the plane of 160 MPa stress. Find also the resultant stress and its direction.

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