An object will float in water if its density is less than that of water. A steel needle sinks since its density is more than water. The interior of a ship is hollow. Therefore, its average density is less than that of water, therefore, it floats.
An object will float in water if its density is less than that of water. A steel needle sinks since its density is more than water. The interior of a ship is hollow. Therefore, its average density is less than that of water, therefore, it floats.