Forces $\vec{F_1} = \left( 6 \hat{i} + 9 \hat{j} \right) \text{ N}$ and $\vec{F_2} = \left( 9 \hat{i} + 14 \hat{j} \right) \text{ N}$ are applied to a disc, as shown in the figure above. The displacement vectors from the center of the disc to the points of action of forces $\vec{F_1}$ and $\vec{F_2}$ are $\vec{r_1} = 9 \hat{i} \text{ m}$ and $r_2 = 5 \hat{j} \text{ m},$ respectively. Find the net torque produced by the forces.