**Example 1:**
Calculate the moment produced by each force about the fixed end (point A) of
the cantilever beam.

**Solution:**
To calculate the moment of each force, we need to know the corresponding perpendicular distance to point A. This information is readily available from the figure above. So we can use the scalar approach to find the moment of each force.

**Notice that although P4 is the smallest force in the group, it produces the largest moment.
**