A problem by Ali Hassan

Level pending

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)

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