For a body partially or completely immersed in a static incompressible liquid, which statements are correct?
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Question

For a body partially or completely immersed in a static incompressible liquid, which statements are correct?

G1 Physics · Accepted Answer

Archimedes' principle gives B = ρ(liquid)V(displaced)g, which is the weight of displaced liquid. The line of action passes through the centre of buoyancy, the centroid of the displaced-liquid volume. For a completely submerged rigid body in an incompressible liquid, displaced volume is constant and liquid density is constant, so B does not depend on depth. If apparent weight is zero with no other vertical force, W = B. Thus, ρ(body)Vg = ρ(liquid)Vg, so ρ(body) = ρ(liquid). Therefore all four st…