Which of the following statement is correct?
1
Force of buoyancy on a floating body equals the weight of the liquid equal to the volume of the body.
2
When a ship moving on seawater enters a river, then it will sink a little.
3
Principle of buoyancy is only applicable to floating bodies.
4
In analyzing the buoyancy of a floating body it is assumed that the resultant vertical force passes through the centre of pressure.