**Q3: **

Two forces of magnitudes 15 N and N are acting at a point such that the measure of the angle between them is . What is the magnitude of the force required to bring this system to equilibrium?

- A 30 N
- B N
- C N
- D 15 N

**Q4: **

Two forces of magnitudes 22 N and 11 N are acting at a point such that the measure of the angle between them is . What is the magnitude of the force required to bring this system to equilibrium?

- A N
- B N
- C 33 N
- D N