A layer of castor oil 1 mm thick is spread on horizontal

Last updated: 6/8/2023

A layer of castor oil 1 mm thick is spread on horizontal floor A block is placed on floor and pulled horizontally at constant speed of 2 ms 1 The face of block touching surface has an area of 20 cm and coefficient of viscosity of oil is 10 poise The force applied on block parallel to surface is 10 N 6 N 5 N