Give full working and explain each step do in the most simple way. Use force triangles and $3$ force member not simltanoues equations. A uniform rod has a length of l$1$ and mass of m$.$ It is supported at A by a smooth wall and at B by a cord of length l$2$ which is attached to the wall as shown.

Variable l$1$ l$2$

Value $1\mathrm{.}11\mathrm{.}9$

Units $[$m$][$m$]$

Hints:

This question can be solved without the use of simultaneous equations $($Use $3$ Force Bodies $-$ Force Triangles$).$

Given the information in the table above, determine:

$1)$ the distance h required to maintain equilibrium,

Answer for part $1($correct but show how to get$)$

$0\mathrm{.}894$

$[$m$],(3$ sigfig$)$

$($Note: There are extra questions that follow the first part.$)$

Variable m g

Value $39\mathrm{.}81$

Units $[$kg$][$ms$-2]$

Given the information in the tables above, determine:

$2)$ the tension in cord BC required to maintain equilibrium,

Answer for part $2$

$[$N$],(3$ sigfig$)$

$3)$ the reaction at A required to maintain equilibrium,

Answer for part $3$

$[$N$],(3$ sigfig, including sign: $+/-)$