1-66. Determine the largest load P that can be applied to the frame without causing either the average normal stress or the average shear stress at section a-a to exceed σ = 150 MPa and 7 = 60 MPa, respectively. Member CB has a square cross section of 25 mm on each side. € B dq 109.boow om ni vtilida bo bortom po sdt bolled Absololit 2 m a A a -1.5 m- C P