an object is placed in a fluid and then released. assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom. (note that for parts a through d, you should assume that the object has settled in equilibrium.)

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14-11-2022
Physics

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an object is placed in a fluid and then released. assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom. (note that for parts a through d, you should assume that the object has settled in equilibrium.)

Answer :

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uzairteacher uzairteacher · Answer 1 · 2022-11-19T15:16:59-05:00

The correct Option is Always true.

According to Archimedes' principle when an object is immersed in a liquid, and it is either partially or wholly submerged, the upward force that acts on the object, is known as buoyancy force and it is equal to the weight of the liquid displaced by the object.

So, the buoyancy force is always present whenever an object is placed in a liquid. Archimedes' principle proves that The magnitude of buoyancy force is always equal to the weight of the fluid displaced by the object

Hence the correct option is Always.

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The complete Question is :

An object is placed in a fluid and then released. Assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom. (Note that, for Parts A through D, you should assume that the object has settled in equilibrium.)

A.Consider the following statement: The magnitude of the buoyancy force is equal to the weight of fluid displaced by the object.

Under what circumstances is this statement true?

A. always

B. only for an object that floats

C. only for an object that sinks

D. never