State Two differences between the natural and forced vibrations.
State Two differences between the natural and forced vibrations.
The free vibration and forced vibration can be differentiated by the following points:
i) A body is said to execute free vibration when it is vibrating by itself, while a body is said to execute forced vibration when it is compelled to vibrate by a periodic force at a frequency other than its natural frequency.
ii) A body in free vibration vibrates with its natural frequency while in forced vibration it vibrates with the frequency of the source.
iii) a body in free vibration vibrates with the help of internal elastic forces while in forced vibration it vibrates with the help of external periodic force.
iv) Force vibration is self-sustained vibration while forced vibration is externally sustained vibration.
The free vibration and forced vibration can be differentiated by the following points:
i) A body is said to execute free vibration when it is vibrating by itself, while a body is said to execute forced vibration when it is compelled to vibrate by a periodic force at a frequency other than its natural frequency.
ii) A body in free vibration vibrates with its natural frequency while in forced vibration it vibrates with the frequency of the source.
iii) a body in free vibration vibrates with the help of internal elastic forces while in forced vibration it vibrates with the help of external periodic force.
iv) Force vibration is self-sustained vibration while forced vibration is externally sustained vibration.
