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They must be equal. When forces are balanced, there is no acceleration, and the object will neither rise nor sink.

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13y ago
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8y ago

If a material floats on water, the it is true that the density of that substance must be less than the density of water at that temperature.

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8y ago

It must displace a volume of water whose mass is greater than its own.

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The density of this material is under 1 g/cm3.

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Q: What must be true about the weight of an object and the buoyant force acting on the object in order for that object to float?
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If the weight of an object was 500 newtons and the buoyant force was 75 newtons would the object sink or float?

Sink ...


How does the buoyant force affect a submerged object?

If the weight of the object is higher than the buoyant force the object SINKS. And the opposite happens if the weight is lower than the buoyant force. If it is equal, the object neither sink nor float, it is neutrally buoyant.


How does buoyancy affect whether an object will sink or float?

If you just set the object in the water, the buoyant force never becomes greater than the object's weight. It sinks and sinks, displacing more and more water, building up more and more buoyant force, until the buoyant force is equal to its weight. At that point, the net force on it is zero, it stops sinking, and it stays right there (floating). The only way you can produce a buoyant force greater than its weight is to force it further down and hold it there. Since the buoyant force is greater than its weight, as soon as you let go, the net force on it is up, and it'll rise, partly out of the water until the buoyant force drops to equal its weight, and again ... it'll stay right there. So the answer to the question is: An object can't stay indefinitely in a position where the buoyant force is greater than its weight. If that happens, then it lifts some of itself out of the water, reducing the buoyant force, until the buoyant force is again just equal to its weight.


What object floats in the middle of water?

what object will not sink or float but will stay suspended in the middle of water


Why things float on water?

Objects will float on water because they aren't as dense as the water itself. A ship will float because there are a lot of compartments filled with air, which is not as dense as water.The above answer is also valid but according to the Archimedes Principle, the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object.

Related questions

What is the effect of buoyant force on the ability an object has to float?

The buoyant force is what causes and object to float. If the buoyant force is less than the object weight, it sinks. If the buoyant force is greater than the objects weight, it rises to the top. If it is equal, the object will float in the middle, neither rising or falling.


Will a submarine sink or float when its weight is greater than the upthrust acting on it?

When the weight of any object surrounded by fluid is greater than the buoyant force on it, it sinks. (The buoyant force is just the weight of the fluid that would be in that space if the submerged object were not there.)


What force cause objects to float when the weight is greater than a buoyant force?

If the weight of an object is greater than its buoyant force, then it will not float - it will sink.


With buoyancy force as reference when does an object float and sink?

An object floats when the buoyant force is equal to the object's weight. An object sinks when the buoyant force is less than the object's weight.


Does An object's buoyant force and weight mean the same thing?

no because buoyant means how much can an object float and weight means how much it weighs.


In which case will an object float on a fluid?

buoyant force =s weight


What is the name of the Force that helps objects float?

Buoyant force.The buoyant force is the net upward force exerted by a fluid on a submerged or immersed object.Archimedes' principle states that the buoyant force is equal to the weight of the fluid displaced.An object will float in a fluid if the buoyant force on the object is equal to the object's weight.


When buoyant force due to water is greater than the weight of the object?

In that case, such an object will float.


Does an objects buoyant and weight mean the same thing?

no because buoyant means how much can an object float and weight means how much it weighs.


How does the weight of a floating object compare with the buoyant force acting on an object?

The weight must be less than the buoyant force. Push down on a floating cork and it will sink below the surface. Stop pushing and remove your hand, and the cork's buoyancy will take over and the cork will float again.


Does the weight of an object immersed in liquid effect the buoyant force on the objects why?

The same object is more buoyant in a denser fluid, and is more likely to float, than in a less dense one. That's why tennis balls float in water but not in air.


An objects buoyant force and weight mean the same thing?

No. The buoyant force on an object is the portion of its weight that appears to vanish when the object is in any fluid (could be either a liquid or a gas). If the object happens to float in a particular fluid, then the buoyant force at that moment is equal to the object's weight. Notice that the buoyant force on an object will be different in different fluids.