Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 11

A horizontal metal bar PQ of length 50.0 cm is hinged at end P. The diagram shows the metal bar viewed from above. [diagram of bar PQ with 16.0 N force at 30° and 5.0 N force acting at Q] Two forces of 16.0 N and 5.0 N are in the horizontal plane and act on end Q, as shown. What is the resultant moment about P due to the two forces?

1. A1.5 N m
2. B4.4 N m
3. C6.5 N m
4. D9.4 N m

As printed in the paper