Chapter 8, Problem 13P

* More lifting You exert a 630-N force on rope 2 in the previous problem (Figure P8.12). Write the two equations (x and y) for the first condition of equilibrium using the pulley as the object of interest for a force diagram. Calculate ${\theta }_1\text{ and }{\theta }_2$.

You may need to use the identity ${\left(\sin \theta {)}^2+(\cos \theta \right)}^2=1$.