A motor provides a torque of 4,300 N-m to gear B of the system shown in Figure P6.30. Gear A takes off 2,800 N-m from shaft (1), and gear C takes off the remaining torque. Both shafts (1) and (2) are...

A motor provides a torque of 4,300 N-m to gear B of the system shown in Figure P6.30. Gear A takes off 2,800 N-m from shaft (1), and gear C takes off the remaining torque. Both shafts (1) and (2) are solid and made of steel [G = 80 GPa]. The shaft lengths are L₁
= 3.0 m and L₂
= 1.8 m, respectively. If the angle of twist in each shaft must not exceed 3.0, calculate the minimum diameter required for each shaft.