



 
Hi Ray, Conversion between units can be a little confusing, especially if you you do not understand what they represent. Slugs, kilograms and poundmass (lbm) are all units of mass so you can convert from one to the other:
Mass is the amount of matter of an object and is often confused with weight. Weight is the strength of the force of gravity on an object. From Newton's 2nd Law of Motion: Force = mass x acceleration. Since force and mass are measurements of different things, we cannot convert the units from one to the other. In the metric system, the unit of force is Newtons which can be defined as N=kg·m/s^{2}. Some other common units of force are poundforce (lbf) and lbm·ft/s^{2}. You can convert one to the other:
Hope this helps. Janice  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 