What are the factors affecting ship stability?
Stability is determined by the force of buoyancy provided by the underwater parts of a vessel, coupled with the combined weight of its hull, equipment, fuel, stores and load. These forces can also be adversely affected by the prevailing weather conditions and sea-state.
What are the various factors affecting this upward force?
From the above formula we can say that the following are the factors that affect up thrust: Acceleration due to gravity – (g) Density of the liquid – (d) Volume of the body submerged in the liquid – (V), or volume of the liquid displaced – (V)
What are the two factors which affect friction?
Q16) State two factors which directly affect the force of friction . Solution : The smoothness of the surface. Mass of the body.
What does upthrust force depend on?
Larger the volume of the body submerged in fluid, greater is the upthrust. More the density of the fluid, greater is the upthrust. The upthrust acts on a body in an upward direction at the centre of gravity of the displaced fluid which is called the centre of buoyancy.
What is the relation between upthrust and volume of the fluid displaced?
Archimedes principle states that: When a body is partly or totally immersed in a fluid there is an upthrust that is equal to the weight of fluid displaced. Upthrust = apparent loss of weight of object = weight in air – weight in liquid.
Why a force is required to keep a rubber block inside water?
Magnitude of the buoyance force acting on the body inside the water is greayer than the weight of the body. Hence, a force is neede to keep a block of wood inside water to overcome the net upward force acting on the cork.
What percentage of the block is submerged?
For example, for an object of mass 160 grams and a volume of 200 cm^3, the density is 0.8 gm/cm^3. 2) Divide density of object by the density of the liquid and express as a % to get % submerged. For floating in water of density 1.0 gm/cm^3, dividing yields 0.8 or 80% of the object is submerged.
Does quicksand have a bottom?
That’s because quicksand is denser than the human body. People and animals can get stuck in it, but they don’t get sucked down to the bottom—they float on the surface. Our legs are pretty dense, so they may sink, but the torso contains the lungs, and thus is buoyant enough to stay out of trouble.