The y-components of F1 and F2 balance each other. Thus, the net force along the y-axis is zero.
The x-components of F1 and F2 add up.
Using Newton's second law:
ΣFx = - F1x - F2x + F3x = 0
F3x = F1x + F2x
The figure (Figure 1) below shows two of the three forces acting on an object in equilibrium.
Redraw the diagram, showing all three forces. Label the third force F3.
Draw the force vector with its tail at the dot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the 2D Equilibrium concept. You can view video lessons to learn 2D Equilibrium. Or if you need more 2D Equilibrium practice, you can also practice 2D Equilibrium practice problems.