A gear train is composed of four gears, where gears A and B are on the same shaft. Gear A has 60 teeth, gear B has 36 teeth, gear C has 48 teeth, and gear D has 12 teeth. If a torque of 0.961 N·m is applied to gear D, determine the torque at gear A.

A baby-swing motor provides 0.24 W at 5,500 rpm to a shaft that has a diameter of 2.21 mm and a length of 13.5 mm. Determine the maximum shear stress in the shaft.

A torque of 28 lb·in. is applied to one end of a 5-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0523 in.4 and a shear modulus of 190 ksi. The inner tube has a polar moment of inertia of 0.011 in.4 and a shear modulus of 180 ksi. Determine the magnitude of the torque produced in the inner tube.

A solid constant-diameter shaft is subjected to the torques shown. Determine the absolute value of the internal torque in segment (3) of the shaft. Assume that TA = 14.0 N·m, TB = 45.6 N·m, TC = 19.7 N·m, TD = 46.1 N·m, and TE = 58.0 N·m.

A gear train is composed of four gears, where gears A and B are on the same shaft. Gear A has 60 teeth, gear B has 36 teeth, gear C has 48 teeth, and gear D has 12 teeth. If a torque of 0.533 N·m is applied to gear D, determine the torque at gear A.

A solid constant-diameter shaft is subjected to the torques shown. Determine the absolute value of the internal torque in segment (3) of the shaft. Assume that TA = 15.9 N·m, TB = 43.8 N·m, TC = 12.3 N·m, TD = 49.1 N·m, and TE = 64.7 N·m.

A torque of 29 lb·in. is applied to one end of a 6-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0311 in.4 and a shear modulus of 190 ksi. The inner tube has a polar moment of inertia of 0.00939 in.4 and a shear modulus of 180 ksi. Determine the magnitude of the torque produced in the inner tube.

A steel socket extension (2) has a diameter of 0.32 in. and a length of L = 2.3 in. It connects socket (3) to ratchet handle (1) which is 4.9 in. long. If a perpendicular force of 7.0 lb is applied to the end of the ratchet handle, determine the maximum shear stress in the socket extension.

A steel socket extension (2) has a diameter of 0.63 in. and a length of L = 1.0 in. It connects socket (3) to ratchet handle (1) which is 8.9 in. long. If a perpendicular force of 18.0 lb is applied to the end of the ratchet handle, determine the maximum shear stress in the socket extension.

A torque of 30 lb·in. is applied to one end of a 5-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0306 in.4 and a shear modulus of 175 ksi. The inner tube has a polar moment of inertia of 0.00365 in.4 and a shear modulus of 160 ksi. Determine the magnitude of the torque produced in the outer tube.