In: Physics
Write the following vector in the component form and add them.
F1 = 15 N at 60o, F2 = 20 N at 150o, and F3 = 30 N at 260o.
We can calculate angle measured from +ve x axis. It will be 180-24.31=155.69 degree.
So we we add all three given vectors, resultant is 43.2 N at 155.69 degree.
If you have any doubt, feel free to ask in the comments.