A metal plate `5cmxx5cm` rests on layer of castor oil 1mm thick whose coefficient of
Channel: Doubtnut
Date: 2020-08-30

A metal plate `5cmxx5cm` rests on layer of castor oil 1mm thick whose coefficient of viscosity is 1.55 `Nsm^(-1)`. Find the horizontal force required to move the plate with a speed of 2`cm^(-1)`.