Quote Originally Posted by DCFDRescue2 View Post
That's why I'm a fireman. While I know the difference, I learned it as a "reaction force" in a crane rigging manual from the 50's that I had read and I've been using it interchangeably with "resultant force" ever since. Old habits die hard I suppose. It is also works better for me when explaining it to the stubborn guys at work who refuse to accept anything new. It doesn't sound as nerdy or exotic to them.
S'ok. Your understanding of physics is way better than my understanding of being a firefighter. There's at least one physicist out here who sometimes wishes he could be a firefighter full time. :-)