Question

The sign of the Torque exerted by the Force F_eF e is

Answer 1

Take into account that the torque generated by a force F, a distance r of a pivot point is given by:

`\vec{\tau}=\vec{r}*\vec{F}`

Due to the torque is a cross product, you can notice that if F is parallel to r, as in the given casce for Fe, the torque is zero (because the cross product is zero)