Fill in the Blank.

For a shaft carrying masses \(m_{1}, m_{2}, \ldots\), Rayleigh's method gives the natural frequency as

\[\omega=\left\{\frac{g\left(m_{1} w_{1}+m_{2} w_{2}+\cdots\right)}{m_{1} w_{1}^{2}+m_{2} w_{2}^{2}+\cdots}\right\}^{1 / 2}\]

where \(w_{1}, w_{2}, \ldots\) denote the ___________ deflections of \(m_{1}, m_{2}, \ldots\), respectively.