Question

14. Three moments of force are applied on a body, respectively M, = +10 Nm, My = -17 Nm and Mg = +8 Nm. Is this body in balance? Why ?

Answer 1

Let the moments be applied about the same axis. We have

$\sum M=10-17+8=1\ (Nm)$ .

The body rotates in the direction of the positive moment $1\ (Nm)$.