By using the method of sections, determine the force in members BC, BF, CF and EF of the truss and state if these members are in tension or compression. Set P= 12 kN, P = 15 kN and P3=9 kN. (Note: you need to use the joint method to determine the force in member BF). P 3m B 3 m E C P 3 m- 3 m D