Momentum and CollisionHard
Question
A cubical block of side ′a′ and density ′r′ slides over a fixed inclined plane with constant velocity ′v′. There is a thin film of viscous fluid of thickness ′t′ between the plane and the block. Then the coefficient of viscosity of the thin film will be :
Options
A.
B.
C.
D.None of these
Solution
Viscous force = weight
ηA
= mg sin θ ⇒ ηa2
= a3ρg sin θ
⇒ η
ηA
= mg sin θ ⇒ ηa2= a3ρg sin θ⇒ η
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3 M and a ...A square box of water has a small hole located in one of the bottom corner. When the box is full and sitting on a level ...A capillary tube (A) is dropped in water. Another identical tube (B) is dipped in a soap water solution. Which of the fo...If the density of the material increase, the value of Young′s modulus : -...An Arrow sign is made by cutting and rejoining a quarter part of a plate of side ′L′ as shown. The distance ...