Question

The viscous force f acting on small sphere of
radius r moving with velocity v through a liquid
is given by f= 6πnrv Calculate dimensions of n
the coefficient of viscosity​

Answer 1

Explanation:

Here 6 and pie is dimension less quantity

Now F= nrv

and F/rv = n

so , n = M¹ L T -^2 / M⁰L¹T⁰ × M⁰L¹T-^1

= ML-^1T-^1