A body floats in fluid when it displaces its own weight of the fluid. This is known as Archimedes' principle.
When an object is placed in a fluid, it experiences an upward force called buoyancy. This buoyant force is equal to the weight of the fluid displaced by the object. If the buoyant force is greater than the weight of the object, the object will float. If the buoyant force is less than the weight of the object, the object will sink.
According to Archimedes' principle, an object floats in a fluid when it displaces its own weight of the fluid. This means that the weight of the fluid displaced by the object is equal to the weight of the object. So, the buoyant force acting on the object is equal to its weight, and the object floats in equilibrium.
Therefore, the correct option is:
- Displaces its own mass of the fluid
is not correct because an object displaces its own volume of the fluid, but the weight of the fluid displaced is equal to the weight of the object, not its volume. is not correct because the object does not displace its own density of the fluid. is not correct because the object is still subjected to gravity, but the buoyant force acting on it counteracts the gravitational force and allows it to float.