_________ Forces are forces acting along the same line. For a truss to remain static the sum of the forces acting on it must be zero.

If the block has a force of 10 N being exerted on it to the left, what should the magnitude of Force A be to keep the block static?

If the block has one force of 10 N acting to the left, and one force of 6 N acting to the right, what must force A be to keep the block static?

What additional force A is needed to keep the block in static equilibrium?

What additional force A is needed to keep the block in static equilibrium?

To determine F1 and F2, we will use our equations for adding linear forces. In this case the forces are vertical.

What is F₁ ______

Determine the external forces acting on the truss.

The truss will ______ when the stress on a web member is greater than the material's yield strength.

Stress is a measure of the amount of _______ exerted per unit area of a surface.