A slab is subjected to two forces $\overrightarrow {{F_1}} $ and $\overrightarrow {{F_2}} $ of same magnitude F as shown in the figure. Force $\overrightarrow {{F_2}} $ is in XY-plane while force $\overrightarrow {{F_1}} $ acts along z = axis at the point $\left( {2\overrightarrow i + 3\overrightarrow j } \right).$. The moment of these forces about point O will be :

Question

$\left( {3\widehat i - 2\widehat j - 3\widehat k} \right)F$

$\left( {3\widehat i + 2\widehat j - 3\widehat k} \right)F$

$\left( {3\widehat i + 2\widehat j + 3\widehat k} \right)F$

$\left( {3\widehat i - 2\widehat j + 3\widehat k} \right)F$

Solution

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