Question

. State stoke's law for the viscous force acting on a sphere of radius r, moving in a fluid of
viscosity n with velocity v. Obtain the unit of coefficient of viscosity in terms of kg, metre
and second.

Answer 1

✔️✔️Hey mate!!✔️✔️

Here is your answer..

According to stokes' law,the backward viscous Force acting on a sphere of radius 'r' with uniform velocity 'v' through fluid of viscosity 'n' is given by

F = 6πrnv

▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️▪️

The unit of coefficient of viscosity

n =

$\frac{f \: dx}{a \: dv}$

=N×m×s/m^2×m

=Nsm^-2

or,

= kg m^-1×s^-1

Hope it helps!

Answer 2

Explanation:

I I give your answer in attachment