otnmbrd wrote:
wrote in message
oups.com...
Maybe I've killed too many brain cells over the years or just
forgotten
some basic stuff but my understanding of Archimedes Principle is
that
the buoyant force on an object is equal to the weight of the fluid
it
displaces. This means that my boat that weighs 8000 lbs must
displace
8000 lbs of water in order to float. If she takes on 8000 lbs of
water, she sinks cuz the buoyant force doesnt balance the weight.
Right?
So, why do people make a distinction 'tween displacement and
weight?

This may not be what you are looking for, but......
There are a number of weights and tonnages associated with
boats/ships, that
need to be differentiated.
For instance:
Displacement
Deadweight
Lt. Ship
Gross tonnage
Net Tonnage
Etc.
So .... each of these "weights" (and not all are) refer to different,

specific weights/measurements associated with the boat


otn

Hmmm...."Displaces more water than its weight..." According to
Archimedes Princ. thsi means that there is a net upward force on the
boat instead of a balance. With a net upward force, she would rise out
of the water so I am not sure this is possible. I may be wrong, its
been many years since I thought about this.