Physics - Fluid Question with Solution | TestHub

A metal plate of area $10^{-2}{\mathrm{m}}^2$ rests on a lauer of castor oil, $2\times 10^{-3}\mathrm{m}$ thick whose coefficient of viscosity is $1.55Ns{m}^{-2}$. The approximate horizontal force required to move the plate with a uniform speed of $3\times 10^{-2}{\mathrm{ms}}^{-1}$ is