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What will be th approximate terminal vel...

What will be th approximate terminal velocity of a rain drop of diameter `1.8xx10^(-3)m`. When density of rain water `~~10^(3) kgm^(-3)` and the co-efficient of viscosity of air `~~1.8xx10^(-5) Nsm^(-2)`? (Neglect buoyacy of air)

A

`49ms^(-1)`

B

`98ms^(-1)`

C

`392ms^(-1)`

D

`980ms^(-1)`

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