Determine the maximum allowable load P that can be safely supported by the frame if t = 1.25 in. and b = 3.5 in. The wood has a normal failure stress of σ_fail= 6 ksi, and a shear failure stress of τ_fail= 1.5 ksi. Use a factor of safety against failure of 2.

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3 in. 3 in. 30° 30