Question

Find out the terminal velocity of rain water drop of radius 1 mm. Viscous coefficient for air is 1.8 × 10^-5 Ns/m² and density 1.2 kg/m³, density of water is 10³ kg/m³, (g = 10 m/s²)

Answer 1

Given, r = 1 mm = 1 x 10^-3 m;