Force Table Lab

Table 1:
Force            Mass(kg)               Force(N)             Direction

F1                 0.25                       2.45                     130

F2                 0.35                      3.43                       30

Eq. FE          0.35                       3.87                      249

Eq. FR          0.395                    3.87                      69


Table 2: Graphical Solution
Force           Mass(kg)               Force(N)             Direction

F1                0.25                       2.45                    130

F2               0.35                         3.43                   30

Res. FR      0.393                     3.90                    69

Table 3: Analytical Solutions
Force                        Mass(kg)                Force(N)             Direction             x-Comp.         Y-Comp.

F1                             0.25                        2.45                    30                       -1.57                1.88

F2                            0.35                         3.43                    130                      2.97                 1.715

Res. FR                    0.386                      3.87                    68.3                     1.40                  3.515


Error Calculation:

Experimental=2.4%
Graphical=1.9%



Discussion:

1.Most relevant to least relevant: Errors in direction of the forces if the strings were not at 90 degrees to the a tangent to the ring, friction of the pulley, ignored mass of the strings.

2. Yes, the pulleys are mostly unchanging, while other methods would be harder to keep straight and unchanged.