When a ship sinks in a wreck, what doesn t float on the water

When the hull was damaged and flooded, the ship's own buoyancy was less than its own weight, so it sank.

A is an iron cabinet, B is a life jacket, C is a plank, C is an inflatable boat.

Reasons why the boat floats on the water:

Archimedes' law states that an object submerged in a liquid experiences an upward buoyant force equal to the weight of the liquid being expelled. That is, when an object is immersed in water, it is subjected to an upward buoyant force from the water equal to the weight of the water that the object is displaced.

The shape of the boat is designed so that it is very large in size and can dislodge a large amount of water, so it is subjected to a large amount of upward buoyancy, which is equal to the weight of the boat, allowing the boat to float on the water. When the boat is stationary, the buoyancy it experiences is equal to the weight of the ship, and the boat floats on the water; And when the boat moves in the water, the current creates resistance to the boat, and at the same time, the boat is also subjected to the force of inertia, so that it is able to move in the water.

In addition, the depth at which the hull sinks is related to buoyancy, which is affected by factors such as the shape of the ship, its volume, and the density of the hull material. If the volume of the boat is larger, then the greater the buoyancy and the smaller the sinking depth of the ship; Conversely, if the boat is smaller, then the less buoyancy and the greater the depth of the ship's sinking.

In short, the boat can float on the surface of the water because of the buoyancy of the water, which is equal to the weight of the water discharged by the boat. The shape of the boat is designed to allow it to dislodge a large amount of water, and Senkey is therefore subjected to a lot of buoyancy, allowing the boat to float on the water.

Causes:

The upper and lower surfaces of the object are under different pressures due to the different depths of the liquid (or gas), and the upward pressure on the lower surface is greater than the downward pressure on the upper surface, and the difference between these two pressures forms buoyancy. The magnitude of buoyancy is closely related to the amount of liquid (or gas) that the object is discarding.

Taking an object immersed in a liquid as an example, because the liquid will produce pressure, and the pressure increases with the increase of depth, and there is pressure inside the liquid in all directions, the upward pressure of the liquid on the lower bottom surface of the object is greater, and the downward pressure of the liquid on the upper and bottom surfaces is smaller, and the pressure difference between the upper and lower bottom surfaces of the object is manifested as a vertical upward buoyancy. The pressures on the sides cancel each other out.

If you are in distress while boarding, run to the nearest exit to the deck within a short period of time and get to the deck as soon as possible. If you have to leave the boat, be sure to wear a life jacket, try to choose a lower position when diving, and avoid floating objects on the water and jump off the upwind side of the boat. If the boat is tilted from side to side, it should be jumped from the bow or stern.

Jump into the water in the best possible position, with your feet together and bent in front of your chest, close to your side at all times, and cross over your life jacket so that your head and neck are exposed to the water. Doing so is important to maintain body temperature.

When the wind and waves hit, do not panic, stay calm, do not stand up or lean to the side of the boat, and sit in the cabin to keep the boat balanced. If water enters the boat, do your best to drain the water.

In the event of a capsizing accident, it is important to understand that wooden ships generally do not sink. The person was thrown into the water, and should immediately grab the side of the boat and try to climb to the bottom of the overturned buckle. When you are farther from the shore, the best thing to do is to wait for help.

Boats made of fiberglass reinforced plastic will sink when they capsize. But sometimes after the ship capsizes, because there is a lot of air in the cabin, the boat can float on the water, at this time, do not turn the boat over, try to keep it balanced, avoid the air running away, and try to catch the capsized boat, in order to wait for rescue, this is also a way to save yourself.