A boat is tied to a dock by four (horizontal) ropes. Two ropes, with a tension of 260 N each, are at right angles to the dock. Two other ropes, with a tension of 360 N each, are at an angle of 20 degree with the dock (Fig. 5.48).What is the resultant of these forces?

 

209 20 FIGURE 5.48 Ropes holding a boat at a dock.