Question

In order that a floating object be in a suitable equlibrium, its centre of buoyancy should be:

• A. vertically above its centre of gravity
• B. below its centre of gravity
• C. horizontally in a line with its centre of gravity
• D. may be anywhere

Answer 1

Answer: (A)

vertically above its centre of gravity

If the center of buoyancy is not vertically above the center of gravity, there would exist net moment which which would cause rotational acceleration and object won't be in equilibrium.