In SI: 1. The "first moment of mass" has the unit *kilogram.meter*. 2. The "second moment of mass" or "moment of inertia" has the unit *kilogram.meter squared*. 3. The "unit of force" has the unit *kilogram.meter per second squared* which is given the special name *newton*. 4. The "unit of energy" has the unit *newton.meter* which is given the special name *joule*.
In SI, the *kilogram.meter* is NOT a unit of energy. I regret that Stan Jakuba is not persuaded that SI is superior to all other previous and antiquated systems of units of measurement. Gene Mechtly. ---- Original message ---- >Date: Tue, 17 Aug 2010 09:39:20 -0400 >From: Stanislav Jakuba <[email protected]> >Subject: Re: [USMA:48372] RE: Air-conditioning >To: [email protected] >Cc: "U.S. Metric Association" <[email protected]> >... > The kg·me is perfectly fine in the context of the > ".... thousands of energy units..." of which most > are of course obsolete and/or bad in other ways. The > kg·m in particular, is still happily used in many > places world over by the old timers. > Two centuries of books and specs have it, usually as a unit of > work which we know is a form of energy. > ... > Stan Jakuba > ...
