Define coefficient of viscosity. Explain Stoke's law and explain the conditions under which a rain drop attains terminal velocity `v_t`, Give the expression for `v_t`.

(a) Explain Stokes Law (b) Define terminal velocity (c) Describe an experiment to determine the terminal velocity

Define Stoke’s law. Define and derive an expression for terminal velocity.

Define Stoke’s law. Define and derive an expression for terminal velocity.

A sphere is dropped under gravity through a fluid of viscosity eta . Taking the average ac celeration as half of the initial ac celeration, show that the time to attain the terminal velocity is independent of the fluid density.

An object of mass m, initially at rest under the action of a constant force F attains a velocity v in time t. Then, the average power supplied to mass is

An object of mass m, initially at rest under the action of a constant force F attains a velocity v in time t. Then, the average power supplied to mass is

Draw and explain the v to t graphs for uniformly accelerated motion.

At a given place two rain drops of volumes V and 8V are falling down with terminal velocities. Their terminal velocities are in the ratio

Rain drops fall from a certain height with a terminal velocity v on the ground. The viscous force is F=5pi nerv Hence ne is coefficient of viscosity r the radius of rain drop and v is speed Then work done by all the forces acting on the ball till it reaches the ground is proportional to :

At a given place two rain drops of volumes V and 8V are falling down with terminal velocities.Their terminal velocities are in the ratio