Determine the magnitude of the moment produced by this force

The board is used to hold the end of a four-way lug
wrench in the position shown when the man applies a force of
F = 100 N. Determine the magnitude of the moment produced
by this force about the x axis. Force F lies in a vertical plane.

The board is used to hold the end of a four-way lug
wrench in position. If a torque of 30 N # m about the x axis is
required to tighten the nut, determine the required magnitude
of the force F that the man’s foot must apply on the end of

[Aaron]

Shouldnt the answer to the first part of the problem be negative? since the boot is pressing clockwise?

[indadzie]

what would have ben the magnitude of the force required to tighten the lug nut if the support board wasn't there?

[Butterchunks]

i have one that i would like to see completed, its a screenshot. its not in the book but its from chapter 4.6 from the mastering engineering. probably simple but i ran out of time.

[LemuelJefferson]

why we dont have have Fy? since it is also perpendicular at x axis

[cheikhmed]

i think the first answer should be negative because fz is going down and if u want distance is clockwise .