A horizontal member with its left end labeled E is pinned to a support lug fixed to a wall and extends to the right. The right end of this member is labeled C and has a middle point labeled D which is $3$ meters from both ends of the member. A supporting link extends in the top$-$right direction from E and that supporting link makes an angle of $30$ degrees with the horizontal member. Another supporting link extends in the top$-$left direction from C and that supporting link makes an angle of $30$ degrees with the horizontal member. Both the supporting links meet at a point labeled B$.$ From D$,$ a vertical member extends to B$.$ A vertically downward force labeled P subscript $1$ acts from D$.$ A connecting member extends in the top$-$left direction from B$,$ and the other end of that member labeled A is pinned to a support lug fixed to the wall. A vertically downward force labeled P subscript $2$ acts from C$.$