If the resultant force acts along the positive u axis, determine the resultant force and angle theta (red angle)
law of sines
pythagorean theorem, etc
parallelogram, head to tail methods, something probably missing, etc
The Attempt at a Solution
The resultant force comes from the 3 kN and 2 kN forces.
-30 deg = tan-1(Fy / Fx)
Fy = (2 kN)(sin θ)
Fx = (3 kN) + (2 kN)(cos θ)
and I get stuck here, trying to go by just what I thought was usual trig / force vectors
If I have to draw another triangle to help solve, then I am not sure how.
Last edited by a moderator: