Question

Are moments scalar or vector?

Answer 1

Explanation:

$\begin{array}{rcl}Moment& =& Forcexdis\tan ce\\ \overrightarrow{M}& =& \overrightarrow{F}x\overrightarrow{r}\end{array}$

1. The moment is a cross product of force $\overrightarrow{F}$ and perpendicular distance from the point to the force vector $\overrightarrow{r}$.
2. A Cross (vector) product is a vector.
3. The moment requires direction to be defined.
4. Thus, it is stated as a Vector quantity.

Hence, the moment is a vector.