Question

difference between inertial force and viscous force?

Answer 1

Inertial force is due to the inertia offered by a body due to its mass it is given by F=ma, where m is the mass of the body and a is the acceleration of the object.

The viscous force is a frictional force when there is a relative motion between the layers of fluid.It is given by the relation $F=\eta A\frac{dv}{dx}$