its something similar to archemedes principle. example:- a lighter body like pin completely immerses in water, where as a heavy body like ship floats in water. i want a detail answer
2007-01-03 22:35:58 · 5 answers · asked by santosh k 1 in Science & Mathematics ➔ Physics
It is about volume of the mass. For example a fat man has much more weight and volume. The formula of water lifting force is volume under water multiplied by density of water. From this you can accept the big guy will have lesser density avarage than a small guy. So it will rise big guy instead of small one. Sorry about the crappy English by the way...
2007-01-03 22:41:12 · answer #1 · answered by The Soulforged 2 · 0⤊ 1⤋
It all about mass and volume. there are two key concepts to look at density and buoyancy. The difference between density and buoyancy is density is a measure of mass per unit volume of an object, while buoyancy is weight of the fluid displaced by an object, as long as the objects weight is less than the weight of the water displaced it will float. This concept also works in other fluids including air (hot air balloons). So yes it is definitely related to Archimedes principal of displacement.
So for a pin which is a solid object it displaces a relatively small amount of water and that amount of water weighs less than the pin so the pin sinks in the fluid.
So a ship like say a Nimitz Class aircraft carrier weighs several thousand tons, but since it's hollow it and it sits lower in the water, it displaces a weight of water greater than it's own massive weight and thus it floats, when this hollow hull starts filling with water that when bad things happen.
2007-01-04 00:34:22 · answer #2 · answered by Brian K² 6 · 0⤊ 0⤋
Its not about weight, its about mass & density. If something is less dense than water it will float, if its more it will sink. Think about the boat, although its heavy it is mostly fill with air. A pin, although very light, is solid metal which is more dense than water.
2007-01-03 22:40:03 · answer #3 · answered by Sir Digby Chicken Bhuna 3 · 0⤊ 1⤋
friend =>lighter substance float in water because the pressure exerted by them in unit are is less compated to heavy once.
=>The surface tension of the water also helps to hold sub
=> in case of ship there are also provision for hollow space inside it which helps it to carry heavy loads
2007-01-03 22:48:11 · answer #4 · answered by eby 1 · 0⤊ 1⤋
both float in the water u lamewad
2007-01-03 22:38:52 · answer #5 · answered by Anonymous · 0⤊ 2⤋