The idea of this method is to attach the body to be measured to a long string, forming a physical pendulum. If we plot the left-hand side vs. \(L^{2}\), we will get a straight line of slope \(m\) and ...The idea of this method is to attach the body to be measured to a long string, forming a physical pendulum. If we plot the left-hand side vs. \(L^{2}\), we will get a straight line of slope \(m\) and ordinate intercept equal to the moment of inertia \(I\). Perform a linear regression analysis on the data (treating \(L^{2}\) as the independent variable, and \(T^{2} m g L / 4 \pi^{2}\) as the dependent variable).
