Drow the shear and bending diagram

Please answer the following question 1-47 in the picture and make sure you draw a free body diagram also use positive sign convention for internal forces please, Thank for your help. Post pictures of your work instead of typing it. Hint: this is a reverse engineering problem;the force in the members can be computed by setting the equal stress condition.

Identify the zero force members in the following trusses. In each case, state which joint you are looking at and the logic behind why it is zero force member: