Hi, Could someone please explain why the answer to the following question is B.
An experiment is performed with a brick and a bucket of water. In which of the following cases does the brick displace the most water?
A. The brick as allowed to sink to the bottom of a bucket.
B. The brick is floated on a piece of massless styrofoam.
C. The brick is held just beneath the surface of the water.
D. In all cases the same amount of water is displaced.
I know that the bouyant force is equal to the weight of the displaced fluid, and that when an object is submerged the volume of the fluid displaced is equal to the volume of the object.
On the other hand, for an object thats floating the volume displaced is less than the volume of the object.
So, shouldn't the volume displaced be greater in case of an object that's submerged?
Thank you
An experiment is performed with a brick and a bucket of water. In which of the following cases does the brick displace the most water?
A. The brick as allowed to sink to the bottom of a bucket.
B. The brick is floated on a piece of massless styrofoam.
C. The brick is held just beneath the surface of the water.
D. In all cases the same amount of water is displaced.
I know that the bouyant force is equal to the weight of the displaced fluid, and that when an object is submerged the volume of the fluid displaced is equal to the volume of the object.
On the other hand, for an object thats floating the volume displaced is less than the volume of the object.
So, shouldn't the volume displaced be greater in case of an object that's submerged?
Thank you