Mr. Al, I certainly don't mind helping students when they post their work and highlight exactly where they're having problems -- it's usually a small misunderstanding of some concept or an algebra mistake and easy to straighten out. And, what's always interesting, those of us giving the answers often learn something new too -- even though we were in school 40 or 50 years ago or more and should know this elementary stuff. This particular situation is also conjoined with a few other threads from ElectroNewby where he/she is asking for similar help in an elementary physics class. His/her reluctance to provide any partial work appears to be independent of the forceful suggestions of others on this forum to show some work -- indeed, somewhat analogously to frictional forces, if you get my drift.