Question

State condition for a body to execute free vibrations.

Answer 1

1. Definition of free vibrations: Free vibration is a type of vibration in which a force is applied once and the structure or part is allowed to vibrate at its natural frequency.
2. Example of free vibrations: vibration of a suspended simple pendulum is an example of free vibration.
3. Condition for a body to execute free vibrations: For a body to execute free vibrations vacuum should be present. Because when a medium is present it offers some resistance and the amplitude of the vibration does not remain constant and decreases continuously.