The coordinates of a particle with respect to origin in a given reference frame is (1,1,1) meters. If a force of F = i - j + k acts on the particle,…

The coordinates of a particle with respect to origin in a given reference frame is $\displaystyle (1,1,1)$ meters. If a force of $\displaystyle \overrightarrow{\mathrm{F}}=\hat{i}-\hat{j}+\hat{k}$ acts on the particle, then the magnitude of torque (with respect to origin) in z-direction is $\displaystyle \_\_\_\_$.