The vertical load at point C, denoted as $P_{C_y}$, is given by $P_C \sin(60^\circ)$. Given that $P_C = 3.3$ kN, we have $P_{C_y} = 3.3 \sin(60^\circ) = 2.86$ kN.
Similarly, the vertical load at point B, denoted as $P_{B_y}$, is given by $P_B \sin(\theta)$,
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