Just got a little query with the final understanding of a problem I have been working on. I will try to make it as brief as possible. I have Four Coplanar Forces, 4N, 8N, 7N and 5N, I have completed a Force diagram and the forces are NOT in equilibrium, their Resultant has been measured at 8.5N, the direction is in the opposite sense to the other forces.
If the resultant force is that force which would replace those other forces, does this mean that the resultant force is the average of these other forces?
How would a person understand which way the resultant force is applied after drawing a force diagram?
Any help appreciated