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A force \( \vec{F}=2 \hat{i}-3 \hat{k} \) acts on a particle at
\( \mathrm{P} \) \( \vec{r}=0.5 \hat{j}-2 \hat{k} \). The torque acting on the particle

W relative to a point with co-ordinates \( (2.0 \mathrm{~m}, 0,-3.0 \mathrm{~m}) \) is
(1) \( \quad(-3.0 \hat{i}-4.5 \hat{j}-\hat{k}) \mathrm{N}-\mathrm{m} \)
(2) \( (3 \hat{i}+6 \hat{j}-\hat{k}) \mathrm{N}-\mathrm{m} \)
(3) \( (20 \hat{i}+4.0 \hat{j}-\hat{k}) \mathrm{N}-\mathrm{m} \)
(4) \( -(1.5 \hat{i}+4 \hat{j}+\hat{k}) \mathrm{N}-\mathrm{m} \)
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