Question

what do you mean by buoyancy​

Answer 1

Answer:

Hi mate

Buoyancy is the ability or tendency of an object to float in a fluid, which can be a liquid or a gas.

The upwards force that an underwater object feels is called the buoyant force

hope it's help

please mark me as brainliest

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Answer 2

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☛ It is the tendency of fluid due to which it always exert upward perpendicular force when an object is immersed in it.

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➤ Buoyant force :-

☛ It is an upward force exerted by fluid when an object is immersed in it.

Expression:-

Let a cylinderical object of height h and base area A is immersed in a fluid of density.

$\rm\:p=\rho{h_1}g$

$\rm\:f_1=p\times\:A$

$\rm\:f_1=\rho{h_1}g\times\:A$

$\rm\:f_2=\rho{h_2}g\times\:A$

$\rm\:f_B=f_2-f_1$

$\rm\:f_B=\rho{h_2}gA-\rho{h_1}gA$

$\rm\:f_B=\rho{g}A(h_2-h_1)$

$\rm\:f_B=\rho\times\:g\times\:A\times\:h$

$\rm\:f_B=\rho{g}\times\:v$

$\rm\:f_B=\rho{v}g$