View Single Post
  #4  
Old 03-27-2015, 01:44 PM
Aquattro's Avatar
Aquattro Aquattro is offline
Just a guy..
 
Join Date: Aug 2001
Location: Victoria, BC
Posts: 18,044
Aquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the rough
Default

Quote:
Originally Posted by crimper View Post

Buoyant Force Formula
Fb=gρV=ρghA
Where ρ is the density of the fluid (saltwater=1029 kg/m3)
g is the gravity,
V is volume of the immersed part of the body in the fluid.
h is the height of immersed part and
A is the area.

Solve for Fb (Buoyant Force) first
Fb=ρghA

Then Solve for V (Volume of the immersed objects e.g. sand+rocks)

V1=[Fb/ρg]

Vt=V1+V2
Where Vt= Total Volume = 300 Gallons = 1135.62 Liters
V1=Total Volume of Objects (Sand+Rocks)
V2= Total Volume of Water

V2=Vt-V1

Good Luck
Great if you're floating a barge and want to figure out the volume it displaces. Let us know how the figuring volume of rock works out

To simplify, I'll guess the rock takes 50g of space. There ya go!
__________________
Brad
Reply With Quote