Distinguish between apparent loss in weight and upthrust
Please guys anyone who can distinguish in definition manner i hope in magnitude the two forces are equal
The are equal. Upthrust is the force going upward due to some force pusing on a weight, thus reducing its "apparent weight".
Sure! I can help you distinguish between apparent loss in weight and upthrust.
Apparent loss in weight, also known as apparent weightlessness, refers to the sensation of reduced weight experienced by an object or person in free fall or in an environment where gravitational forces are effectively canceled out or counteracted. This can occur in scenarios such as being in an elevator that's freely falling or being in a spacecraft in orbit around the Earth. In these situations, although the object or person still has its actual weight, the perception of weight is diminished due to the absence of a support force. Apparent loss in weight is a subjective experience and doesn't involve any additional force acting on the object or person.
On the other hand, upthrust, also known as buoyant force, is a force exerted by a fluid (liquid or gas) on an object immersed in it or partially submerged. According to Archimedes' principle, the upthrust force is equal to the weight of the fluid displaced by the submerged part of the object. In simpler terms, when an object is submerged in a fluid, the fluid exerts an upward force that opposes the weight of the object. This is why objects float in water or rise to the surface when immersed.
In terms of magnitude, apparent loss in weight and upthrust forces are not necessarily equal. Apparent loss in weight is a perception or sensory experience, not an actual force, so it doesn't have a specific magnitude. It depends on the specific circumstances and the absence of a supporting force.
However, upthrust, being a physical force, follows Archimedes' principle, which states that the upthrust force is equal to the weight of the fluid displaced by the submerged part of the object. Therefore, the magnitude of the upthrust force depends on the volume of fluid displaced and the density of the fluid.
In summary, apparent loss in weight refers to the subjective feeling of reduced weight in the absence of a support force, while upthrust is a physical force exerted by a fluid on a submerged object. The two forces are conceptually different, and their magnitudes are not necessarily equal.