Question

Module 1: Raindrop question: Can somebody please tell me how did they find that for a raindrop of 0.2 cm, speed will be 5 m/s?

Answer 1

Tell meeee smebody. :D

Answer 2

its based on our daily experiences. its one of measuring skills that we must gain it. if we choose 1,2 or 3 m/s its so much slower than what we usually observe. if we choose 7 or 8 m/s or more its sooo fast! so our remained chooses are 4 , 5 or 6 m/s.(\\[5\pm1 m/s\] so we could GUESS that the best answer might be 5 m/s.
just imagine a rainy day

Answer 3

hmm ok... thanks :)

Answer 4

I think that estimating the terminal velocity of a raindrop is extremely difficult to all but a meteorologist, and could be nothing more than a crude guess. My guess was 2 m/s (k=2.5 /m). I think that these questions are more about understanding the process of estimation than the accuracy of the estimate per se.

Answer 5

yeah true