Question

A drop of water of diameter 0.02mm is falling through a medium, whose density is 1.21*10^-3 gm/cm3 and coefficient of viscosity is 1.8*10^-9 poise. Find the terminal velocity of drop

Answer 1

Answer:

Explanation:

Radius of the drops = 0.02 cm, viscosity of air = 1.8 × 10-4 poise, g = 9.9 × 10 m s-2 and density of water = 1000 kg m-3. ... To find the terminal velocity of rain drops, the forces acting on the drop are, i) The weight (4/3)π  pg downward. ii) Force of buoyancy (4/3)π  σg upward. iii) Force of viscosity 6 π η r v ...