A block with base dimension `25 cm xx 50 cm` and weighing 25 kgf slides down a `30^(@)
Channel: Doubtnut
Date: 30/08/2020

A block with base dimension `25 cm xx 50 cm` and weighing 25 kgf slides down a `30^(@)` inclined surface with a uniform speed of `2m//sec` on a 2mm thin oil film. The viscosity of oil in SI units is img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/MPP_PHY_C10_E01_077_Q01.png" width="80%"