Chapter 8, Problem 8P

You hang a light in front of your house using an elaborate system to keep the 12- kg light in static equilibrium (see Figure P8.8). What are the magnitudes of the forces that the ropes must exert on the knot connecting the three ropes if ${\theta }_2=37°\text{ and }{\theta }_3=0°$? Rope 3 can be tied to the hook on the wall.