The shaft of a paddle mixer used to mix oil and powder has two sections as shown below, with the end of the shaft attached to a mixer motor at A. A hand stabilizer applies a concentrated torque at a point along the shaft of 2L/5. The mixer is immersed in the powder from B to C, which imparts a uniformly distributed torque. If TO = 50 lb-ft and L = 5 ft, - Find the reaction moment at A b. Find the internal torque in 3 segments of the shaft (between A and the concentrated torque,between the concentrated torque and B, between B and C) by making cuts and applying static equilibrium. Plot the torsional moment diagram.

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