(Solved): A 2D pin jointed truss is shown in Figure P2b. Support B is a pin support and support A a vertical ...

A 2D pin jointed truss is shown in Figure P2b. Support B is a pin support and support A a vertical roller support. Three point loads are applied as shown with values \( P=18 \mathrm{kN} \) and \( Q=29.5 \mathrm{kN} \) Figure P2b: Truss Front Elevation view i) Calculate the horizontal reaction forces at support A in units of kN. Indicate a postive vlaue as pointing to the right. Provide your answer to 2 decimal places. [1 mark] Horizontal reaction forces at support \( \mathbf{A}[\mathrm{kN}]= \) Force in member EG \( [\mathrm{kN}]= \) Force in member \( \mathrm{FG}[\mathrm{kN}]= \) iv) As shown aligned in Figure P2b the diagonal members in the truss will If the diagonal members in Figure \( \mathrm{P} 2 \mathrm{~b} \) are all arranged such that they all slant downwards i.e. members AD, CF etc., the diagonal members will If the diagonal members in Figure \( \mathrm{P} 2 \mathrm{~b} \) are all arranged such that they all slant upwards i.e. members \( \mathrm{BC}, \mathrm{DE} \) etc., the diagonal members will|