How can we develop a method for finding the shear stress in a beam?

I Review The boards are glued together to form the built-up beam. (Figure 1) Part A If the wood has an allowable shear stress of Tallow = 2.5 MPa , and the glue seam at D can withstand a maximum shear stress of 1.7 MPa , determine the maximum allowable shear V that can be developed in the beam. Note: Ignore the glue seam at B for this calculation. Express your answer to three significant figures and include the appropriate units. HA V = 18.9 kN Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Figure 1 of 1 > Provide Feedback Next > 50 mm. 50 mnt 50 mm 50 mm 150'mm 30 mm B. 150 mm

Why do the actual bending and shear stress in the beam do not exceed allowable limits?

I Review Part A If the beam is made from wood having an allowable shear stress Tallow = 410 psi , determine the maximum magnitude of P. Set d = 4 in. (Figure 1) Express your answer to three significant figures and include the appropriate units. ? P = Value Units Figure 1 of 1 > Submit Request Answer 2P Provide Feedback Next > B 2 ft2 ft→+-2 ft 2 in.