[ANSWERED] For the one-dimensional bar shown in Figure P16–3, determine the natural frequencies of vibration,..

For the one-dimensional bar shown in Figure P16–3, determine
the natural frequencies of vibration, o’s, using two elements of equal length.
Use the consistentmass approach. Let the bar have modulus of elasticity E, mass
density r, and crosssectional area A. Compare your answers to those obtained
using a lumped-mass matrix in Example 16.3.