Question: The tensile stresses at a point across two mutually perpendicular planes are 120 N/mm 2 and 60 N/mm 2 .Determine the normal, tangential and resultant

The tensile stresses at a point across two mutually perpendicular planes are 120 N/mm² and 60 N/mm² .Determine the normal, tangential and resultant stresses on a plane inclined at 30° to the axis of the minor stress.

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