I know how to find magnitude of resultant of two forces . But I was doubt what is the direction of resultant force?
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I know how to find magnitude of resultant of two forces . But I was doubt what is the direction of resultant force?
One technique is this:
1. Break each force into its x-component and y-component.
2. Sum up the x-component forces to get an Fx_total.
3. Sum up the y-component forces to get an Fy_total.
4. The resultant force is found using Pythagorus:
F_total = sqrt(Fx_total^2 + Fy_total ^2)
The direction is found using the arc tangent:
Theta = ArcTan(Fy_total/Fx_total)
You will need to check the value of theta to make sure that it's in the appropriate quadrant (plus or minus 180 degrees).
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