Question: QUESTION 3 ( Total 2 0 marks ) A pin jointed roof truss is simply supported and is represented in the figure 3 . (

QUESTION 3(Total 20 marks)
A pin jointed roof truss is simply supported and is represented in the figure 3.
(a) Calculate the suport reactions.
(4 marks)
(b) Calculate the forces in each member of the roof truss shown in figure 3 and state the nature of forces/stress in each member (tension or compression).
QUESTION 3 ( Total 2 0 marks ) A pin jointed roof

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