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?
$r\rho gh + mg$
$r \rho gh - mg$
$\pi r^2\rho gh + mg$
$\pi r^2\rho gh - mg$
A beaker is filled in with water is accelerated $a $ $m/s^2$ in $+x$ direction. The surface of water shall make on angle
A cubical block of side $0.5\,m$ floats on water with $30\%$ of its volume under water. ....... $kg$ is the maximum weight that can be put on the block without fully submerging it under water ? [Take density of water $= 10^3\,kg/m^3$ ]
A boat having some iron pieces is floating in a pond. If iron pieces are thrown in the liquid then level of liquid
Why is it easier to swim in sea water than in river water ?
Write and prove Archimedes principle.