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Will the sumberine float or sink if its weight is greater than the upthrust acting on it?
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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.)
Does upthrust reduces the weight of an object?
No, the weight and upthrust are two different forces acting on an object. If both weight and upthrust are acting on an object, the total resultant force is the two added together, but weight is solely a product of the mass (which remains unchanged, unless you take into account special relativity, but I'm guessing we're not in this instance) and acceleration acting on the given object, which remains the same.
What is bouyancy force always equal to?
Buoyancy force or upthrust must be equal to the weight of the object for the object to stay afloat. If the weight is greater than the upthrust, the object would sink.
How does a hot-air balloon rise?
The upthrust on the balloon is greater than the weight of the balloon. Thus, it rises upwards. The upthrust on the balloon is greater than the weight of the balloon because the air inside it has a lower density than the surrounding air.
Can upthrust be greater than weight?
YES...and examples are flying objects! Interestingly,Any liquid or gas produces upthrust. For example, the upthrust of air keeps a hot air balloon up.
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.)
Does upthrust reduces the weight of an object?
No, the weight and upthrust are two different forces acting on an object. If both weight and upthrust are acting on an object, the total resultant force is the two added together, but weight is solely a product of the mass (which remains unchanged, unless you take into account special relativity, but I'm guessing we're not in this instance) and acceleration acting on the given object, which remains the same.
Why does empty box not imerse in water?
Because upthrust is greater than weight.
What is bouyancy force always equal to?
Buoyancy force or upthrust must be equal to the weight of the object for the object to stay afloat. If the weight is greater than the upthrust, the object would sink.
How does a hot-air balloon rise?
The upthrust on the balloon is greater than the weight of the balloon. Thus, it rises upwards. The upthrust on the balloon is greater than the weight of the balloon because the air inside it has a lower density than the surrounding air.
If the upthrust is greater than the weight what happens to the submarine?
Well, if the Upthrust were greater than the weight, there would be a net force upwards, and as a consequence of newtons second law a=F/m it accelerates upwards. Hence, the submarine floats.
Can upthrust be greater than weight?
YES...and examples are flying objects! Interestingly,Any liquid or gas produces upthrust. For example, the upthrust of air keeps a hot air balloon up.
Why does a air balloon not rise?
To lift the baloon, upthrust should be greater than weight. Mg
How does density and upthrust compare in size?
Upthrust cancels weight out, weight is there but you do not feel it.
What are two forces acting on a bubble as it rises through a liquid?
1) Weight in the downward direction 2) Upthrust due to the displaced liquid
What is the effect of water on object submerged in water?
It is named as buoyant force which always acts in the upward direction ie opposite to the weight of the body. So actual weight appears to be reduced. Hence apparent weight loss
What are the reason why some things float in the water?
Certain things float in water because their density is less than the density of water. If something experiences more upthrust in water than its weight(upthrust>weight) or upthrust=weight, then it floats in water.
