A right circular cylinder has a mass m , radius r , and a height h . cylinder is completely submerge

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9-1.Fluid Mechanics

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A right circular cylinder has a mass $m$, radius $r$, and a height $h$. The cylinder is completely submerged in a fluid of density $\rho$, as shown in the diagram. What is the magnitude of the net force on the cylinder?

A

$r\rho gh + mg$

B

$r \rho gh - mg$

C

$\pi r^2\rho gh + mg$

D

$\pi r^2\rho gh - mg$

Solution

$F_{net} = F_b – mg = \rho Vg – mg = \rho \pi r^2hg – mg$

Standard 11

Physics

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