0.02 x 1000 = ___
0.2
2
20
200
Here, the decimal point needs to be shifted 3 places to the right.
0.02 x 1000 = 20.0 = 20
Estimate the speed of vertically falling raindrops from the following data. Radius of the drops = 0.02 cm, viscosity of air = 1.8×10−4 poise, g = 9.9×10ms−2 and density of water = 1000kgm−3