The diagram illustrates a metre rule MN supported on two supports, P and Q. Two loads are positioned on the rule, as indicated. The rule is in stable equilibrium on the supports. Which row is the correct one?
- Atotal moment about M is clockwise; total moment about N is anticlockwise
- Btotal moment about M is clockwise; total moment about N is zero
- Ctotal moment about M is zero; total moment about N is clockwise
- Dtotal moment about M is zero; total moment about N is zero