Question
The moment of the couple formed by the forces $\vec{F_1} = 5\hat{i} + \hat{k}$ and $\vec{F_2} = -5\hat{i} - \hat{k}$ acting at the points (9, -1, 2) and (3, -2, 1), respectively, is:
The moment of the couple formed by the forces $\vec{F_1} = 5\hat{i} + \hat{k}$ and $\vec{F_2} = -5\hat{i} - \hat{k}$ acting at the points (9, -1, 2) and (3, -2, 1), respectively, is: