A steel ball of diameter 2mm falls at constant rate 0f 10cm in 3.4secs through oil in a relatively large jar. calculate the coefficient of viscosity assuming the density of the oil and ball to be 920 and 7700kgm^3 respectively?
1 Answer
Mar 1, 2018
The coefficient of viscosity is
Explanation:
The forces acting on the ball are
The viscisity is
The radius of the ball is
The terminal velocity is
The acceleration due to gravity is
The density of the ball bearing material is
The density of the oil is
Therefore,