Physics

Problem

Forces

2\hat{i} + \hat{j}

2\hat{i} - 3\hat{j} + 6\hat{k}

and

-\hat{i} + 2\hat{j} - \hat{k}

act at a point P, with position vector

4\hat{i} - 3\hat{j} - \hat{k}

. Find the moment of the resultant of these force about the point Q whose position vector is

6\hat{i} + \hat{j} - 3\hat{k}