TITANIC was not made of wood(as wood floats on water)than how did such an heavy object floated on water?

Answer 1

In physics, buoyancy is an upward force on an object immersed in a fluid (i.e., a liquid or a gas), enabling it to float or at least to appear lighter. Buoyancy is important for many vehicles such as boats, ships, balloons, and airships.

The buoyancy provides an upward force on the object. The upward forces (buoyancy) have to balance the downward forces weight. Otherwise, it will accelerate upwards or downwards.

If such an object's compressibility is less than that of the surrounding fluid, it is in stable equilibrium and will, indeed, remain at rest, but if its compressibility is greater, its equilibrium is unstable, and it will rise and expand on the slightest upward perturbation, or fall and compress on the slightest downward perturbation. For an object to float, it must be able to displace enough water equal to its weight.
It was the ancient Greek, Archimedes of Syracuse, who first discovered the law of buoyancy, sometimes called Archimedes's principle:

The buoyant force is equal to the weight of the displaced fluid.
The story of Archimedes discovering buoyancy while sitting in his bathtub is described in Book 9 of De architectura by Vitruvius.

The weight of the displaced fluid is directly proportional to the volume of the displaced fluid (specifically if the surrounding fluid is of uniform density). Thus, among objects with equal masses, the one with greater volume has greater buoyancy.

Suppose a rock's weight is measured as 10 newtons when suspended by a string in a vacuum. Suppose that when the rock is lowered by the string into water, it displaces water of weight 3 newtons. The force it then exerts on the string from which it hangs will be 10 newtons minus the 3 newtons of buoyant force: 10 − 3 = 7 newtons.
If the weight of an object is less than the weight of the fluid the object would displace if it was fully submerged, then the object is less dense than the fluid and it floats at a level so it displaces the same weight of fluid as the weight of the object.

If the object has exactly the same density as the liquid, then it will stay still, neither sinking nor floating upwards, just as the liquid nearby stays still.

An object made of a material of higher density than the fluid, for example a metal object in water, can still float if it has a suitable shape (e.g. a hollow which is open upwards or downwards) that keeps a large enough volume of air below the surface level of the fluid. In that case, for the average density mentioned above, the air is included also, which may reduce this density to less than that of the fluid.

Although Archimedes's principle gives the force on a buoyant object, this does not allow the direct determination of the acceleration of the object in the usual way using Newton's second law. This is because as well as accelerating the object, the fluid also has to be dynamically displaced- resulting in drag.

While Archimedes's principle is hydrostatic force, it must be taken into account, even in hydrodynamic situations. A simple case would be that of a submerged sphere that is twice as dense as water starting at rest and as it first starts to fall through the water. Initially ignoring drag, a first approximation might be to include the force of gravity and subtract the force of buoyancy and then apply Newton's equation F = ma. The next step would be to attempt to take into account the drag forces due to viscosity, which is a form of dynamic friction. Next is the inertial forces of the water that has to get pushed out of the way as the sphere passes through the water: the inertial component of drag. One might use the drag equation. The velocity would increase and the force of drag will increase until the object reached terminal velocity, where turbulence might also be a consideration. Still, the hydrostatic force of buoyancy operating on the submerged or floating object must be taken into account.

Answer 2

This is simple, look up Archimedes principal. Google is at the top of this screen.

It does not matter how heavy is an object, If the over all density of the object is less then density of the liquid, the object will float in that liquid.

In case of Titanic this was true. But it when it hit the ice burgh it had a big hole, water got in and caused a massive imbalance, which in turn caused it to brake up and additional water entered the empty space which changed the over all density of the ship and it sank.

I would like for you to do an experiment.

Take empty clear glass bowl so that you are able to see what is hap penning. Fill it up with water half way. Take three pieces of aluminium foil say 4in x 4in, put one piece in water. It will end up at the bottom in no time. Now take the other piece, put it on your palm, put your thumb on the centre of the foil, and fold the bottom palm to make a shallow cup, make sure you do not damage the foil(no holes no tears).

Put the cup in the same ball the cup will float.

Now add some small coins to the cup, one at a time carefully and slowly, cup will sink. Take out this both cups and the coins.

Now make the third cup. Cut a small hole in the bottom of the cup. Put it in the same bawl observe it slowly sink.

You can show this to your teacher, friends and family.

PS

Kevin and moosa has given you the information on Archimedes principal, when they answered your other q?, but I thought I will answer the way you will understand it batter, using density and foils.

Answer 3

The ship was made of steel but was hollow from inside i.e., it was filled with air and occupied large area on water surface. According to Archimedes principle, an object can float when the weight of the water displaced by the object is equal the part of object submerged. Therefore, on account of the principle of floatation weight of the water displaced by ship was equal to the weight of part submerged in the water.

Answer 4

Any object that floats does so by displacing the volume of water equal to the weight of the object. While a large ship is made of metal, it floats because it's hollow, in a sense, and water, being relatively dense, will hold it up once the ship is as deep into the water (moving aside that water and the weight of that water) as the weight of the ship demands.

Answer 5

Because what was inside of the hollow ship was lighter.

Once water began to flood in and push the air out, it began to go down.

It's all about volume and densities of the materials in and out of the ship.

Answer 6

the weight of the water displaced =weight of the floating body
by laws of floatation

Answer 7

2 sciencey 4 me

Answer 8

the duck because hes on top of the wood...try this is if im picked for 10 points.. why did the chick cross the playground??

Answer 9

Displacement.
That is the key word, now do your own research.

Answer 10

Thats why it sunk!!!