Consider an equilibrium situation in which three forces act on an object but the total force is zero. What can be said about these forces?
Pick all that apply.
1. All forces must have the same magnitude.
2. All forces must have different magnitude.
3. The sum of the magnitudes of any two forces must be greater than the magnitude of the third force.
4. The magnitude of any force must be greater than the difference of magnitudes of the other two forces.
5. The graphical vector sum resembles a triangle.
6. All forces must lie in the same plane.