Engineering statics 5 The boom OA carries a load P and is su

Engineering statics

5) The boom OA carries a load P and is supported by two cables as shown Can the boom be in an Equilibrium condition and why/why not? 36 in 25 in. 24 in. 29 in 4S in.

Solution

The boom OA will be equilibrium. In statics, unresolved forces will have impact on stability of the system under analyis. The unresolved force will create forces and moments which is undesirable. The forces and moments actingon the boom must be resolved and should lead to net zero forces and moments. In statics, the boom OA can be cut and analyzed independently for forces acting on it. Hence, it must be in equilibrium.