1. The problem statement, all variables and given/known data Two spheres, with volume 0.1m^3, and masses M1=200kg and M2=15kg, are connected by a thin wire. They are dropped into the ocean (assume Rho=1000kg/m^3) and allowed to sink 2. Relevant equations 3. The attempt at a solution I know buoyancy = Rho * g * V Buoyancy + Lift-M2 + Fwire = Sink-M1. I'm not sure how to get the rising/sinking forces of the two spheres, and how they interact with each other though. Any help at all is appreciated, thanks in advance.