Question

The diagram in Fig. shows the displacement- time graph of a vibrating body. Name the kind of vibrations.

Answer 1

The harmonic oscillations at varying amplitude, oscillating are shown in Figure between $-aand+a$. Harmonic oscillations tend to die away as time goes on. This behavior, called damping of the oscillations, is produced by forces such as friction and viscosity. These forces are known collectively as dissipative forces because they tend to dissipate the potential and kinetic energies of macroscopic bodies into the energy of the chaotic motion of atoms and molecules known as heat.
Hence, the vibrations are damped vibrations.