Question

A submerged body will be in stable equilibrium if the centre of gravity is

• A. Below the centre of buoyancy
• B. Above the centre of buoyancy
• C. Coinciding with the centre of buoyancy
• D. None of the above

Answer 1

Answer:

A. Below the centre of buoyancy

A submerged body is in stable equilibrium if the centre of gravity is below the centre of buoyancy. The equilibrium requires weight acting through G to be colinear with hydrostatic lift through B. Stable equilibrium occurs when B is above G, unstable when B is below G, and neutral when B coincides with G.