Hi. I was working through the UIL Districts 2 test and came across some problems that I was unable to do. Any advice and explanation would be greatly appreciated.
49) Cy Phy's physics class is trying to determine the magnitude of the sum if two forces, 220 and 180 lb, act on an object at an angle of 46 degrees. What is the magnitude of their sum? (nearest lb).
And number 52, for wish you would require a picture that I am unable to reproduce here. The link to that test is: http://texasmath.org/DL/UIL2010D2.pdf