On Thu, 15 Mar 2001, Joseph B. Reid wrote:
> ... If the life jacket had a flotation power 61 N at sea
> level, it would have a flotation power of only 60.93 N at Denver.
Do you assume total immersion of the jacket at both locations?
The newton (N) is the SI unit of force. Why do you call it power?
> However, at sea level and 45° latitude the life jacket would support
> (float) a mass of 6.22 kg, and at Denver it would still float a mass of
> 6.22 kg.
How so? What fractions of immersion do you assume for the jacket,
and for the floated mass at each location?
> Hence the flotation power should have been expressed in kilograms.or
> pounds-mass.
How so? In SI, neither force nor mass is power.
Furthermore, Archimedes' Principle (governing flotation) applies
directly to forces not to masses.
