Question 2 (15%) A single horizontal force P of 150 lb is applied to end D of lever ABD, as shown in Figure 2. Knowing that portion AB of the lever has a diameter of 1.2 in. (1) Determine the normal and shear stresses on an element located at point H with sides parallel to the x and y axes. (2) Determine the principal stresses and principal planes as well as the maximum shear stress at point H. (3) Draw the stress Mohr's circle. N 10 in 4 in y B 18 in H $1.2 in Figure 2 D P