It would have to be heavier than the amount of liquid that it displaces.
maybe the density of the objects
The salt makes the water dense and the object must be heavier like metal or a ship to sink.
object that sink in water
It's weight. The general rule is that an object will sink if it has a density greater than the liquid in which it is placed.
why does an object sink
The earth's gravitational pull makes objects sink in a liquid, but buoyancy acts in the opposite direction to oppose the gravity. Whether an object sinks or floats depends on which force is bigger. ================================
the buoyant force acts in the direction opposite to the force of gravity, so it makes the object feel lighter
An object will sink if gravity effects it more then it's boyancy does.
the salt water is denser because of the salt
Buoyancy, which is an upward acting force exerted by a fluid , that opposes an object's weight.
Density affects objects because the density makes the object either flout, sink or stay in the middle. I hope that can help you. Sorry if it is wrong :(
Substances with a density (mass per unit volume) greaterthan a liquid will sink in the liquid; if the object has a lower density it will float.