A uniform metre rule with weight $2.0\,\text{N}$ is supported on a pivot at the $60\,\text{cm}$ mark. A $4.0\,\text{N}$ load is hung from one end, so that the rule turns around the pivot. When the rule is horizontal, what is the resultant moment about the pivot?
- A$0.0\,\text{N m}$
- B$1.4\,\text{N m}$
- C$1.6\,\text{N m}$
- D$1.8\,\text{N m}$