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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.
it will float
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Which is heavier 1kg of stone or 1kg of feathers?
It's a trick question, but with a not-so-trick answer:The expected "correct" answer, is that since both "weigh" 1kg, they both have the same weight, and so neither one is heavier.The CORRECT answer actually depends on a few more details, which will be explained in steps as follows:1) The kg is a unit of mass, whilst weight, in the correct meaning of the word, is a measurement of forcemeasured in Newtons.2) Force = mass x acceleration-> Weight = mass x acceleration-due-to-gravity (g = 9.81 m/s2)So up until now, we could argue that the stones and the feathers each have a weight of approx. 9.81 Newtons. However, so far we've only calculated the downward force on the two objects due to gravity.Assuming that we're measuring the weight of these two objects somewhere on Earth, we must also consider the effects of the Earth's atmosphere, specifically the upward force this causes. Since air is a fluid, we must consider the effects of upthrust on these two objects:3) Upthrust = weight-of-displaced-fluidNow this is where things start to get interesting! Since we can safely assume that stone is more dense than feathers, then for the two objects to have the same mass of 1kg, the volume of the feathers must be greater than the volume the stone. Therefore, they will displace more of the fluid (air):4) Stone-upthrust < Feathers-upthrustSo, getting back to weight:5) Weight = downforce-due-to-gravity - upthrust-from-fluidSo, since the downforce due to gravity is equal in both instances, BUT the feathers produce more upthrust, the weight of the stone is, in fact, greater than the weight of the feathers.Therefore, if they are both measured at the same location on Earth, 1kg of stone will be heavier than 1kg of feathers.(Just don't tell your school Physics teacher this, unless you want him to think you're a smart-ass :-)
Which has a greater weight a kilogram of butter or a kilogram of lead which has greater density?
They both weight a kilogram. Lead has a higher density.
Is 8.3 kilograms greater than 8300 grams?
Neither is greater.
How much is a magnum of liquid equal to?
Mostly a poor question, since you never defined the units of "much." However, in terms of weight, the answer will depend on the specific gravity of the liquid; the greater the SG of the liquid, the greater the weight.
Which is greater 285g or 1.2kg?
In weight, 1.2kg is much heavier than 285g
Will the sumberine float or sink if its weight is greater than the upthrust acting on it?
The submarine will sink if its weight is greater than the upthrust acting on it. Upthrust is the force pushing an object upwards in a fluid, such as water. When an object's weight is greater than the upthrust, it will sink.
Will the submarine sink or float when its weight is equal to the upthrust acting on it?
The submarine will float when its weight is equal to the upthrust acting on it. This is because the upthrust force pushing the submarine upwards is equal to the weight of the water displaced by the submarine, resulting in a state of equilibrium where the submarine neither sinks nor floats.
Will a submarine sink or float when its weight is greater than the upthrust acting on it?
A submarine will sink if its weight is greater than the upthrust acting on it. This is because the force of gravity pulling it down will overpower the buoyant force lifting it up, causing it to descend.
Will a submarine sink or float when it's weight is equal to the upthrust acting on it?
If the weight of the submarine is equal to the upthrust acting on it, the submarine will float. This is due to Archimedes' principle, which states that an object will float when the buoyant force acting on it is equal to the gravitational force pulling it down.
What happens if upthrust is bigger than the weight of an object?
If the upthrust is greater than the weight of an object, the object will experience a net upward force causing it to float or rise in a fluid (like a buoyant object in water). This is because the upthrust or buoyant force exerted by the fluid on the object is greater than the weight of the object, resulting in a buoyant effect.
How do weight and upthrust make things float?
When an object is placed in a fluid (like water), it experiences two opposing forces: weight pulling it down and upthrust (also called buoyant force) pushing it up. If the object's weight is less than the upthrust, it will float. This happens because the upthrust force exerted by the fluid is greater than the object's weight, allowing it to stay afloat.
Why does empty box not imerse in water?
Because upthrust is greater than weight.
Can upthrust be greater than weight?
Yes, upthrust can be greater than weight in fluids with high densities, such as water. This can result in objects floating or being pushed upwards in the fluid.
What are the different types of upthrust?
Positive upthrust: when the buoyant force acting on an object is greater than its weight, causing it to float. Neutral upthrust: when the buoyant force is equal to the weight of the object, causing it to remain suspended in a fluid. Negative upthrust: when the buoyant force is less than the weight of the object, causing it to sink.
What has upthrust got to do with floating in water?
Upthrust, also known as buoyant force, is the force exerted by a fluid that opposes the weight of an object immersed in the fluid. When an object is placed in water, the upthrust is greater than or equal to the weight of the object, causing it to float. If the upthrust is less than the weight of the object, it sinks.
Why does a air balloon not rise?
To lift the baloon, upthrust should be greater than weight. Mg
Can upthrust be less than weight?
Yes, upthrust can be less than weight in certain situations where the density of the object is greater than the density of the fluid it is immersed in. This results in the object sinking rather than floating.
