Physics · 2019
JEE Main · 11 January 2019, Shift 1 · Q6
A slab is subjected to two forces F_1 and F_2 of same magnitude F as shown in the figure. Force F_2 is in XY-plane while force F_1 acts along z -axis…
A slab is subjected to two forces $\displaystyle \overrightarrow{\mathrm{F}}_1$ and $\displaystyle \overrightarrow{F_2}$ of same magnitude F as shown in the figure. Force $\displaystyle \overrightarrow{\mathrm{F}}_2$ is in XY-plane while force $\displaystyle \mathrm{F}_1$ acts along $\displaystyle z$-axis at the point $\displaystyle (2 \vec{i}+3 \vec{j})$. The moment of these forces about point O will be :
Official answer
(2)
$\displaystyle (3 \hat{i}-2 \hat{j}+3 \hat{k}) \mathrm{F}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.