I have been searching for a while and con not find what i am looking for. Does anyone know or have a link to where i could find the above information? Thanks!
Bouyant Force = RhoVg
Rho = Density of object
V = Volume of object
g = acceleration due to gravity (-9.8 m/s/s or -32 ft/s/s)
So, for everything else being equal, a 1lb EPS board will be more bouyant than a 2lb EPS board.
But, you have to consider both density of board AND RIDER in combination. So the difference will not be twice as much. Here’s a decent explanation
http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Pressure/BouyantForce.html
On the same site: that’s why a Diet Coke floats and a Classic Coke sinks:
http://www.ac.wwu.edu/~vawter/PhysicsNet/QTMovies/PressureFluids/FloatingDietCokeMain.html
So, with a lighter density EPS board, you may float an inch or two higher in the water (if the water level is at your belly button with a 2 lb EPS board when sitting on your board, it will be below belly button level with a 1 lb EPS board).
JSS