An element in plane stress is subjected to stresses (x = 4750 psi, (x = 1200 psi,

Question:

An element in plane stress is subjected to stresses (x = 4750 psi, (x = 1200 psi, and Txy= 950 psi, as shown in the figure.
Determine the stresses acting on an element oriented at an angle ( = 60° from the x axis, where the angle u is positive when counterclockwise. Show these stresses on a sketch of an element oriented at the angle (.