Redo Prob. 7.3 to find the shear stress at point A.Let h=4.25 mm; then h1=h and h2=2.25...

Redo Prob. 7.3 to find the shear stress at point A.Let h=4.25 mm; then h1=h and h2=2.25 mm.

For the torsional member of cross section shown in Fig. P7.3, find the shear stresses at point B.Take h = 5 mm and h₁ = h₂ = 3.5 mm.