The shift of 𝐺0 to 𝐺1 is parallel to the shift of the mass 𝑞
The slope of q moving is equal to the slope of mass moving
The shift of 𝐺0 to 𝐺1 is parallel to the shift of the mass 𝑞
The slope of q moving is equal to the slope of mass moving
reserve buoyancy
The volume of the hull which is above the water line
Positively stable
The centre of buoyancy is at the centre of the displaced volume.
Buoyancy must equal weight plus any external vertical forces.
External tension like moorings and tendons.