A force F$=(3$i$3\mathrm{.}5$j$+3$k$)$kN is applied at point A of a rectangular box.

The side dimensions of the box are a$=0\mathrm{.}8$m$,$ b$=0\mathrm{.}9$m and c$=2\mathrm{.}5$m$.$

The moment of F$$ about the point B is denoted by M$.$

State whether the given statements are correct or incorrect.

a$)$

M$=(7\mathrm{.}5$i$2\mathrm{.}4$j$4\mathrm{.}7$k$)$ kNm$.$Answer for part a$)$

Correct

Incorrect

$1$ markUnanswered

b$)$

$$M$=9\mathrm{.}17$ kNm$.$Answer for part b$)$

Correct

Incorrect

$1$ markUnanswered

c$)$

Point A lies on the moment axis which is perpendicular to BA$.$ Since AD$$ is perpendicular to BA$,$ this means that the moment axis is along AD$.$Answer for part c$)$

Correct

Incorrect