Problem P3(b) Figure 3b shows a curved and straight member AB and BC connected by an internal pin at B. The system has two pin supports at A and C. A single horizontal point load, P = 53 kN is applied as shown in the gure. The horizontal length, L, of member BC is 3.9 m. t-"-"""""""\"""" 1m Lm Figure P3(b): Three Pin System i) What is the value of the vertical reaction at support C in units of kN'? [1 mark] Use the sign convention that an upwards force is positive. Provide your answer to 2 decimal places. Vertical Reaction at support C [kN] = : ii) What is the value of the horizontal reaction at support C in units of kN? [1 mark] Use the sign convention that a force to the right is positive. Provide your answer to 2 decimal places. Horizontal Reaction at support C [kN] = \\:|