1. The problem statement, all variables and given/known data Determine the magnitude of force F so that the resultant Fr of the three forces is as small as possible. What is the minimum magnitude of Fr? 2. Relevant equations Their is a 5N force heading horizontally to the right, a 4 N force heading vertically downwards, Force F is directed upwards and to the left, at an angle of 30 degrees south east of vertical (30 degrees from the 4N force) 3. The attempt at a solution My prof said to leave it as a variable and solve it as normal, but i don't see how i can solve it. Do i find the resultant of the two known forces and use F as a variable from then on, seperating both into their seperate components to find the final resultant force?