AAI ATC Junior Executive 25 Mar 2021 Shift 1 Paper

A block of surface area 0.2 m² is placed on a frictionless horizontal surface having a 0.20 mm thick uniform layer of liquid. On applying a constant horizontal force 0.010 kg.f on the block, it begins to move with a constant speed of 0.075 m/s. calculate the coefficient of viscosity of the liquid.(g = 10 N kg^-1)