Ouestion ${?}^{H}2(10$ points$)$

For the loaded truss shown in the Figure:

a$)$ Calculate the support reactions at $nA$ and roller

E$.$

b$)$ Identify the zero force members.

c$)$ Determine the force in the member $AB$ and $AF$

using the method of joints.

d$)$ Determine the forces in member $CB,CF$ and $EF$

using the method of sections.

Note: Specify whether the members are in Tension or

Compression