Classical Mechanics
# Torque

$\vec{F} = \left(3 \hat{i} + 6 \hat{j} \right) \text{ N}$ is applied to a disc, as shown in the figure above. The displacement vector from the center of the disc to the force's point of action is $\vec{r} = \left( 7 \hat{i} + 3\hat{j} \right) \text{ m}.$ Find the torque produced by the force $\vec{F}.$

A force of$\vec{F_1} = \left( 6 \hat{i} + 9 \hat{j} \right) \text{ N}$ 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.

Forces×

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