explain the principle behind the floating of a ship?

Answer 1

Forget everything about Archimede's principle if u want to properly understand Fluid Mech. The only principle to be followed is the Bernoulli's Theorem which gives variation of pressure with depth. If u integrate the vertical force due to this pressure equation u will get the bouyant force which is similar to Archemedis' Eureka but has a stronger mathematical base. Especially when the density of fluid or water varies with the depth. Also one more thing to be seen is the stability against toppling that the metacenter shold not come down below the center of mass which can be again obtained from the Bernoulli's theorem

Answer 2

Floating Principle

Answer 3

THE PRINCIPLE LEFT BEHIND IS 'archimedes principle'

when a body is partially or wholly immersed in a liquid,then upthrust (force of bouyancy)is = the weight of the weight of the liquid displaced by the IMMERSED PART OF THE SOLID..

U=V.D.G
= M.G
=W
U =UPTHRUST.

WHERE V=VOLUME OF THE DISPLACED LIQUID.
D=DENSITY OF LIQUID.
W=WT.OF THE LIQUID.

ACC. TO UR QUESTION
SHIPS DISPLACE MORE VOLUME OF WATER AND HENSE THE UPTHRUST OFFERED BY THE WATER .

THEREFORE THE SHIP FLOATS IN THE WATER.


How does a boat or ship carrying hundreds of pounds worth of stuff float while that same stuff would sink to the bottom of the ocean if dumped overboard? How come when you're in a pool and you stretch your body out flat you float. But, if you wrap your arms around your legs and curl up into a ball you sink? Well, it all has to do with how much water is pushing against you and a little scientific principle called buoyancy (the ability to float or in more technical terms - the upward forces exerted by a fluid on a body in it). or floatation. When you stretch out flat more water pushes against you since your body is laid out flatter

THANK U.

Answer 4

How does a boat or ship carrying hundreds of pounds worth of stuff float while that same stuff would sink to the bottom of the ocean if dumped overboard? How come when you're in a pool and you stretch your body out flat you float. But, if you wrap your arms around your legs and curl up into a ball you sink? Well, it all has to do with how much water is pushing against you and a little scientific principle called buoyancy (the ability to float or in more technical terms - the upward forces exerted by a fluid on a body in it). or floatation. When you stretch out flat more water pushes against you since your body is laid out flatter

Answer 5

The idea is that the weight(mass) of the ship is equal to the weight(mass) of the water it displaces.

Since a ship whose hull beneath water displaces a volume of water equal to the volume of that hull, then in order for the water that is displaced to have equal weight with the ship, it must have equal mass. To find out if a ship will float, do the following:

1. First, calculate the volume of displacement of a ship. Keep in mind that the heavier a ship is, the more of it will sink beneath the surface, and so the more it will displace. Usually all ships have calculated displacement values based on how much weight they carry.
2. Calculate the mass of water that is being displaced. To do this, we need to use the formula for the density of water. Density is measured in mass/volume. If you multiply the volume that is displaced by the density, you will get the mass of that water. (that is volume*mass/volume=mass).
3. Calculate the entire mass of the ship, including the hull, cargo, etc. If the mass is greater than the mass of water that is displaced, then the ship will sink. But if it is less, the ship will float.

Answer 6

Any object floats in water if its weight is equal to the weight of the diplaced volume of water. When the ship displaces water, the water tends to fill the space from which it is displaced. This pushes the ship upward. The weight of the ship acts downward. If these two forces are equal then the ship floats.

Answer 7

The amount of water a ship displaces must be equal to or greater than the weight of the whole ship. That's when the buoyant force is equal to the weight of the ship.

Answer 8

Archimedes principle-
When a body displaces a volume of water equal or greater than it's weight

Answer 9

something heavier than water sinks. take that weight and mass - distribute it over a bigger area or offset its density by adding light weight composites to it as helium and you got it to float. perhaps a third version exist think of a solid piece of lead - should sink- but if we attach a high speed motor with a propeller we are changing the physics as the lead didn't change but more area of bouncy is being used to keep it afloat.

Answer 10

displaces mass of ship prior to volume of water