Free vibration ofa system is vibration that occurs in the absence of external force. An external force that acts onthe system causes forced vibrations. In this case, the exciting force continuously supplies energyto the system. Forced vibrations may be either deterministic or random (see Fig.
Of course it's your name--I learned that in 8th grade. Now for one (the first) from 7th grade and one from college (the second). 1. What do you have when you sit down and lose every time you stand up? 2. What is it that men do standing up, but women are allowed to do while sitting down? (A warning: this is suitable for mixed company, but maybe not for mixed-up company.) This is about as close as I'd come to probable offenses on this site.
Do you have knowledge of the fact.... I honestly think that keeping it simple is best. It's not the words you use, it's how you use the words you use. When others read what we write, we want them to have a clear understanding of what we're trying to say. I like the are you aware. It's your paper and I think your on the right track.