For the truss shown,

find:

a) all zero-force members

b) using the method of joints to determine the forces in all the members to the left of member EL

c) using the method of sections to determine the forces in EF, FL, and LM. Indicate whether the members are in tension or compression.

Note: the only force is 50 kips at joint J

 

A H B 53.130 1 53.130 D 53.130 53.130 50 K E 53.130 L 75.964 F M 75.964 N