Ayuda Por favor Doy 29 PuntosEl tema es EstáticaCON RESOLUCIÓN​?

Primero hacer el diagrama de cuerpo libre y descomponer la tensión con ángulo en sus componentes x, y

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7B%5Clarge%7Bcondici%C3%B3n%20%5C%20de%20%5C%20estatica%7D%7D" />

<img src="https://tex.z-dn.net/?f=%5Csum%20F%3D0%5CRightarrow%20%5Cbegin%7Bcases%7D%5Csum%20F_x%20%3D0%5Ccr%20%5Csum%20F_y%20%3D0%5Cend%7Bcases%7D" />

<img src="https://tex.z-dn.net/?f=%5Csum%20F_x%20%3DT_h-T_%7BDx%7D%3D0%5CRightarrow%20T_h%3DT_%7BDx%7D" />

<img src="https://tex.z-dn.net/?f=%5Csum%20F_y%20%3DT_%7BDy%7D-Q%3D0%5CRightarrow%20T_%7BDy%7D%3DQ" />

<img src="https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7DT_%7BDx%7D%3DT_D%5Ctimes%20cos%2853%29%5Ccr%20T_%7BDy%7D%3DT_D%5Ctimes%20sen%2853%29%5Cend%7Bcases%7D" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7B%5Clarge%7BReemplazando%3A%7D%7D" />

<img src="https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7DT_D%5Ctimes%20sen%2853%29%3DQ%5Ccr%20T_D%5Ctimes%20cos%2853%29%3DT_h%5Cend%7Bcases%7D" />

dividiendo las dos ecuaciones :

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7BT_D%5Ctimes%20sen%2853%29%7D%7BT_D%5Ctimes%20cos%2853%29%7D%3D%5Cfrac%7BQ%7D%7BT_h%7D%5CRightarrow%20%5Ctan%2853%29%3D%5Cfrac%7BQ%7D%7BT_h%7D" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7B%5Clarge%7Bigualando%20%5C%20a%5C%20T_h%7D%7D" />

<img src="https://tex.z-dn.net/?f=%20T_h%3D%5Cfrac%7BQ%7D%7B%5Ctan%2853%29%7D" />

[img = 10]

[img = 11]

[img = 12]

[img = 13]

la tensión horizontal [img = 14] es 45N.