Question

1000 small rain drops combine to form a bigger drop. If the terminal velocity of bigger drop is 50m/second then find the velocity of smaller drops?

Answer 1

Answer:

0.5 m/s

Explanation:

volume of big drop = volume of 1000 small drop.

=> 4/3πR³ = 1000(4/3π r³)

=> R³ = 1000r³

=>R = 10 r

velocity of big drop V = v(R²/r²)

where v = terminal velocity .

so 50 = v [(10 r)²/r²]

=> 50 = v(100)

=> v = 0.5 m/s