In this lesson, we will learn how to solve problems involving a rigid body that is in equilibrium under the effect of two forces.

Q1:

Two forces of magnitudes 15 N and 1 5 √ 3 N are acting at a point such that the measure of the angle between them is 1 5 0 ∘ . What is the magnitude of the force required to bring this system to equilibrium?

Q2:

Two forces of magnitudes 22 N and 11 N are acting at a point such that the measure of the angle between them is 9 0 ∘ . What is the magnitude of the force required to bring this system to equilibrium?

Q3:

Three forces of magnitudes 16, 19, and 8 newtons, respectively, are acting at a single point. Given that the forces are in equilibrium, find the size of the angle between the forces of magnitudes 16 and 8 newtons approximated to the nearest minute.

Q4:

Three forces of magnitudes 16, 10, and 8 newtons, respectively, are acting at a single point. Given that the forces are in equilibrium, find the size of the angle between the forces of magnitudes 16 and 8 newtons approximated to the nearest minute.

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