Originally Posted by

**jsu03** Can someone please help me with this problem. Thanks a lot!

Question: You have three vectors, F1=35 w/40 degrees, F2=40 w/25 degrees, F3= 80 w/30 degrees. ** Find the resultant vector of all three.**

What I did: 40 sin 25 + 35 sin 40 = 39.40

40 cos 25 + 35 cos 40 = 63.06

then I divide each of these two number to each other w/ tan inverse and got 2.26 then I am stuck. By the way I did what I did so far is wrong. I am very confuse cause the correct answer was 78.4 and 17.1 degree. Can u please tell me what I did wrong or how to do this problem. Thanks again!