Three rescuers are pulling horizontally on a safety net to keep it taut. One pulls northward with a force of 295n; the second pulls in a direction 31 degrees south of west wit ha force of 250N. In which direction and with what force must the third pull to keep the net stationary? I dont know how to solve for the force but I have an angle of 37 degrees. I tried to use http://answers.yahoo.com/question/index?qid=20100208080145AAFCZ4V as a model but I do not know where they get the numbers like -120 N and -150 N.