What is the required diameter d1 for the segment AB of the shaft illustrated in Fig. P6....

What is the required diameter d1 for the segment AB of the shaft illustrated in Fig. P6.6 if the permissible shear stress is = 50 MPa and the total angle of twist between A and C is limited to φ= 0.02 rad? Given: G = 39 GPa, T_B=3 kN. , L₁ = 2 m, L₂ = 1 m, and d₂ = 25 mm.

What is the required diameter d1 for the segment AB of the shaft illustrated in Fig. P6.6 if the permissible shear stress is = 50 MPa and the total angle of twist between A and C is limited to φ= 0.02 rad? Given: G = 39 GPa, T_B=3 kN. , L₁ = 2 m, L₂ = 1 m, and d₂ = 25 mm.