Solution of task 5.3.1 from the collection of Kepe OE

Solution of task 5.3.1 from the collection of Kepe OE

5.3.1
Determine the modulus of the principal moment of the system of forces relative to the center O if its projections are known on the axis of the Cartesian coordinate system: Mx = -20 Nm, Mu = 12 Nm, and Mz = 0. (Answer 23.3)