To determine the total torque on the body, the net torque has to be calculated. The net torque is the sum total of all the individual torques acting on the body. However, since this is a rotational equilibrium, the addition of all torques acting on a body results to zero. This implies that net torque does not exist on a body (Benenson and Stöcker).
In the experiment, there is a difference in theoretical and experimental values. Percentage error for F1 is 0.75 and the percentage error for F2 is 1.6. The errors are attributed to various reasons. The meter stick may be having a non-uniform distributed mass, thus resulting to the errors. This is due to the fact that the pivot point is usually taken to be at 50 cm, which is not the case since the material is not evenly distributed across the whole length of the meter stick. Also, they may be anomalies in the hunger