The force `7 hat i+ 3 hat j - 5 hat k` acts on a particle whose position vector is `hat i- hat j + hat k`. What is the torque of a given force about the origin ?

Explanation

To find the torque of a given force about the origin, we can use the formula for torque (\(\tau\)) which is given by the cross product of the position vector (\(r\)) and the force vector (\(F\)):

\[ \tau = r \times F \]

### Step 1: Identify the position and force vectors
Given:
...