Required information

When force $P=0,$ portion ABC of the structure is vertical, portion $CD$ is horizontal, and spring $EB$ is horizontal and

unstretched. Whien a sufficiently large value of $P$ is applied, points $B,C,$ and $D$ move to locations $B^{\text{'}},C^{\text{'}},$ and $D^{\text{'}},$

respectively. The force $P$ is always vertical, the spring has $23l\frac{b}{i}n.$ stiffness, the pulley at $D$ is frictionless, and the weight

of members is negligible.

NOTE: This is a multi$-$part question. Once an answer is submitted, you will berunable to return to this part.

Determine the value of $P$ so that portion $A{B}^{\text{'}}{C}^{\text{'}}$ of the structure is horizontal and portion $C^{\text{'}}{D}^{\text{'}}$ is vertical. Also, determine the force

supported by the spring and the reactions at point $A.($Do not include a minus sign in your response.$)$

The value of $P$ is

Ib darr. $($Round the final answer to four decimal places.$)$

The force supported by the spring is

Ib

The horizontal component of the reaction force at $A$ is

$lb.($Round the final answer to four decimal places.$)$

The vertical component of the reaction force at $A$ is

Ib darr. $($Round the final answer to four decimal places.$)$