See the attached file.
Finding the vector sum of three forces
1) Experimental method:
Use F1 of 160g at 280 degrees, F2 of 105 grams at 60 degrees and F3 of 75g at 15 degrees counter clockwise from the +y axis. Determine the equilibriant and the resultant of the three vectors experimentally. Record magnitude and direction of resultant. Draw a graph.
We used a force table and the E vector on the table was 60g at 180 degrees if this helps.
2) Graphical method:
Follow the same procedure as for two forces. Record the magnitude and direction of the resultant on graph paper.
3) Component method:
Roughly draw the vector F3. Draw the component triangles with arrows and label relevant angles and magnitudes.
Record x and y components of F1,F2,F3.
Determine and record the x and y components of the resultant.
Use the components of the resultant to make a rough drawing of vector R. Use the diagram to determine the magnitude and direction of the resultant. Does it agree with the other methods?
Please see the attached file.
The method and the calculations I describe in the solution could be ...
The solution is a detailed step by step process demonstrating how to add more than two vectors.