Given the following concurrent forces: F1=5N North; F2= 7N at 30 degrees celsius N of W; F3= 10 N at 75 degrees celsius W of S Determine: a) F1+F2 b) F2-F3 c) F3+F1-F2

Question

Given the following concurrent forces: F1=5N North; F2= 7N at 30 degrees celsius N of W; F3= 10 N at 75 degrees celsius W of S  Determine: a) F1+F2 b) F2-F3 c) F3+F1-F2

anonymous · Answer

Try to begin by drawing neat, scaled vector diagrams. Add vectors tip to tail.

anonymous · Answer

The vector diagram you drew shows the vector sum of all four vectors. This is not what you are looking for in parts a) to c).  Try the vector diagram for part a) first.

Did you learn how to find the vector sum mathematically, using either the vector component method or the laws of sines and cosines method?