Each member of the truss is uniform and has a mass density . Determine the approximate force

Question:

Each member of the truss is uniform and has a mass density ρ. Determine the approximate force in each member due to the weight of the truss. State if the members are in tension or compression. Solve the problem by assuming the weight of each member can be represented as a vertical force, half of which is applied at each end of the member.

Given:

ρ = 8kg/m

g = 9.81m/s2

F1 = 0 N

F2 = 0 N

a = 3 m

b = 4 m

a a B E