Question 1
30°
B
A
45°
30°
The diagram shows the free body diagram of a joint in a truss which is supporting a load, F. In the
FBD the direction (sense) of forces A and B are assumed, so may not be correct.
Given: $F = 250 \, kN$ and $C = 100 \, kN$
1. Draw draw a neat, labeled free body diagram representing the situation.
2. Write two equilibrium equations, symbolically, based on your free body diagram.
3. Solve your equations to determine the magnitudes of forces A and B necessary for equilibrium.
4. Indicate whether forces A and B are in tension or compression.