Module 10 : Vibration of Two and Multidegree of freedom systems; Concept of Normal Mode;
                      Free Vibration Problems and Determination of Ntural Frequencies;
                      Forced Vibration Analysis; Vibration Absorbers; Approximate Methods -
                      Dunkerley's Method and Holzer Method
Lecture 1 : Free Vibration of Two d.o.f. systems
Objectives
    In this lecture you will learn the following
Equation of motion for free vibration of two degree of freedom systems
Solution of the equations of motion; Natural frequencies
Concept of Normal Modes
1