The 800-1b cylinder is supported by three chains as shown. Take d = 1 ft. (Figure 1) Figure < 1 of 1 Part A Determine the force in AB chain for equilibrium. Express your answer to two significant figures and include the appropriate units. FAB= μA Value Part B Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Determine the force in AC chain for equilibrium. ?

Here, co-ordinates of points are,

A(0,0,-1), B(1cos135⁰,-1cos135⁰,0)=B(-0.707,0.707,0) ,C(1,0,0),D(0,-1,0)

So, now Force along chain is given by force value multiply by unit vector in that direction as 

$$\begin{gathered} {\mathit{F}}_{\mathbf{A}\mathbf{B}}=F_{AB}\left(\frac{-0.707\hat{i}+0.707\hat{j}+1\hat{k}}{\sqrt{{(-0.707)}^2+0.{707}^2+1^2}}\right)=-0.5F_{AB}\hat{i}+0.5F_{AB}\hat{j}+0.707F_{AB}\hat{k} \\ {\mathit{F}}_{\mathbf{A}\mathbf{C}}=F_{AC}\left(\frac{1\hat{i}+1\hat{k}}{\sqrt{1^2+1^2}}\right)=0.707F_{AC}\hat{i}+0.707F_{AC}\hat{k} \\ {\mathit{F}}_{\mathbf{A}\mathbf{D}}=F_{AD}\left(\frac{-1\hat{j}+1\hat{k}}{\sqrt{{(-1)}^2+1^2}}\right)=-0.707F_{AD}\hat{j}+0.707F_{AD}\hat{k} \end{gathered}$$

$\mathit{F}=-800\hat{k}$