A problem by Ali Hassan
Four drops of water moving with a fluid velocity of 4m/s. If their radii is same, then on combining the four drops, what would be the resultant velocity of the resultant droplet?
Related Formulae of fluid dynamics: mass× acceleration due to gravity =6×pi×neta×radius×terminal velocity
Volume of sphere is V=4/3 × (pi×radius^3)
The answer is 10.
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