## buoyant force

A rock with a volume of 0.2m3 is fully sumberged in water with density of 1000kg/m3. What is the buoyant force acting on the rock?

Assume that gravity acts on the system
0.2m3*9.81m/s2 = 1.96
buoyant force = 1000kg/m3*1.96
= 1960N
????
 PhysOrg.com science news on PhysOrg.com >> Galaxies fed by funnels of fuel>> The better to see you with: Scientists build record-setting metamaterial flat lens>> Google eyes emerging markets networks
 Recognitions: Gold Member Homework Help Check the units of your answer. You do not have the correct expression for buoyant force. The buoyant force on an object also depends upon the volume submerged: $$F_b=\rho g V$$ where V is the volume submerged.
 Ok, i get it now. makes it a lot clearer. thanks